{"title":"Refrigerant Line Sets \u0026 Fittings","description":"\u003cp\u003eProfessional refrigerant line sets \u0026amp; fittings for HVAC contractors and homeowners. All items ship same-day from Houston. 30-day returns.\u003c\/p\u003e","products":[{"product_id":"mini-split-line-set-1-4-x-3-8-inch-25-feet-insulated-copper","title":"Mini Split Line Set 1\/4 x 3\/8 Inch 25 Feet Insulated Copper","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eMini Split Line Set 1\/4 x 3\/8 Inch 25 Feet Insulated Copper\u003c\/h2\u003e\n    \u003cp\u003ePre-insulated copper line set for mini split air conditioner and heat pump installations. Includes 1\/4\" liquid line and 3\/8\" suction line with 25 feet of insulated copper — enough for most wall-mounted installations.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003e25 feet of pre-insulated copper tubing — ready to install\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick closed-cell insulation prevents condensation and energy loss\u003c\/li\u003e\n\u003cli\u003eFlared and ready for connection — no brazing required for mini splits\u003c\/li\u003e\n\u003cli\u003eWorks with all major mini split brands (Mitsubishi, Daikin, Fujitsu, MrCool, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eMini Split Line Set 1\/4 x 3\/8 Inch 25 Feet Insulated Copper\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089188723,"sku":"NHVAC-REFR-ALRTH2","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71fT7aqPsyL._AC_SL1500_7e805870-03cf-4d78-9559-c72b21165a0a.jpg?v=1781918174"},{"product_id":"mini-split-line-set-1-4-x-1-2-inch-25-feet-insulated-copper","title":"Mini Split Line Set 1\/4 x 1\/2 Inch 25 Feet Insulated Copper","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eMini Split Line Set 1\/4 x 1\/2 Inch 25 Feet Insulated Copper\u003c\/h2\u003e\n    \u003cp\u003ePre-insulated copper line set for mini split air conditioner and heat pump installations. Includes 1\/4\" liquid line and 1\/2\" suction line with 25 feet of insulated copper — enough for most wall-mounted installations.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003e25 feet of pre-insulated copper tubing — ready to install\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick closed-cell insulation prevents condensation and energy loss\u003c\/li\u003e\n\u003cli\u003eFlared and ready for connection — no brazing required for mini splits\u003c\/li\u003e\n\u003cli\u003eWorks with all major mini split brands (Mitsubishi, Daikin, Fujitsu, MrCool, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eMini Split Line Set 1\/4 x 1\/2 Inch 25 Feet Insulated Copper\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089221491,"sku":"NHVAC-REFR-EFQO5F","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71fT7aqPsyL._AC_SL1500_c2a4e8b7-b531-413a-8d6e-2fe0be79dbb0.jpg?v=1781918172"},{"product_id":"mini-split-line-set-3-8-x-5-8-inch-25-feet-insulated-copper-2-ton","title":"Mini Split Line Set 3\/8 x 5\/8 Inch 25 Feet Insulated Copper 2 Ton","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eMini Split Line Set 3\/8 x 5\/8 Inch 25 Feet Insulated Copper 2 Ton\u003c\/h2\u003e\n    \u003cp\u003ePre-insulated copper line set for mini split air conditioner and heat pump installations. Includes 3\/8\" liquid line and 5\/8\" suction line with 25 feet of insulated copper — enough for most wall-mounted installations.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003e25 feet of pre-insulated copper tubing — ready to install\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick closed-cell insulation prevents condensation and energy loss\u003c\/li\u003e\n\u003cli\u003eFlared and ready for connection — no brazing required for mini splits\u003c\/li\u003e\n\u003cli\u003eWorks with all major mini split brands (Mitsubishi, Daikin, Fujitsu, MrCool, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eMini Split Line Set 3\/8 x 5\/8 Inch 25 Feet Insulated Copper 2 Ton\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089287027,"sku":"NHVAC-REFR-4DDUOY","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71fT7aqPsyL._AC_SL1500_af910697-1fb7-4137-9e6f-81a5029be9a4.jpg?v=1781918178"},{"product_id":"mini-split-line-set-1-4-x-3-8-inch-50-feet-insulated-copper","title":"Mini Split Line Set 1\/4 x 3\/8 Inch 50 Feet Insulated Copper","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eMini Split Line Set 1\/4 x 3\/8 Inch 50 Feet Insulated Copper\u003c\/h2\u003e\n    \u003cp\u003ePre-insulated copper line set for mini split air conditioner and heat pump installations. Includes 1\/4\" liquid line and 3\/8\" suction line with 50 feet of insulated copper — enough for most wall-mounted installations.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003e50 feet of pre-insulated copper tubing — ready to install\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick closed-cell insulation prevents condensation and energy loss\u003c\/li\u003e\n\u003cli\u003eFlared and ready for connection — no brazing required for mini splits\u003c\/li\u003e\n\u003cli\u003eWorks with all major mini split brands (Mitsubishi, Daikin, Fujitsu, MrCool, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eMini Split Line Set 1\/4 x 3\/8 Inch 50 Feet Insulated Copper\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089450867,"sku":"NHVAC-REFR-108PH3","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/71fT7aqPsyL._AC_SL1500_aeda2288-15ad-4e94-9284-bdbacf6c0322.jpg?v=1781918176"},{"product_id":"copper-coupling-3-8-inch-od-straight-sweat-10-pack","title":"Copper Coupling 3\/8 Inch OD Straight Sweat 10 Pack","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCopper Coupling 3\/8 Inch OD Straight Sweat 10 Pack\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade copper coupling 3\/8 inch od straight sweat 10 pack for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eCopper Coupling 3\/8 Inch OD Straight Sweat 10 Pack\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089614707,"sku":"NHVAC-REFR-2IG40M","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61UNmv1AoML._AC_SL1500.jpg?v=1781918164"},{"product_id":"copper-elbow-90-3-8-inch-od-short-radius-sweat-10-pack","title":"Copper Elbow 90° 3\/8 Inch OD Short Radius Sweat 10 Pack","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eCopper Elbow 90° 3\/8 Inch OD Short Radius Sweat 10 Pack\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade copper elbow 90° 3\/8 inch od short radius sweat 10 pack for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eCopper Elbow 90° 3\/8 Inch OD Short Radius Sweat 10 Pack\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089811315,"sku":"NHVAC-REFR-FUEL22","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61UNmv1AoML._AC_SL1500_19acbad2-d32a-4475-a9c0-4679fbff02f1.jpg?v=1781918166"},{"product_id":"filter-drier-3-8-inch-sweat-liquid-line-bi-flow-heat-pump","title":"Filter Drier 3\/8 Inch Sweat Liquid Line Bi-Flow Heat Pump","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eFilter Drier 3\/8 Inch Sweat Liquid Line Bi-Flow Heat Pump\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade filter drier 3\/8 inch sweat liquid line bi-flow heat pump for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eFilter Drier 3\/8 Inch Sweat Liquid Line Bi-Flow Heat Pump\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004089975155,"sku":"NHVAC-REFR-ROBIOF","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61LEAVHkYUL._AC_SL1500_a3c35127-ad5e-49ae-8847-48b5cc8afd12.jpg?v=1781918170"},{"product_id":"filter-drier-1-4-inch-flare-liquid-line-ac-universal","title":"Filter Drier 1\/4 Inch Flare Liquid Line AC Universal","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eFilter Drier 1\/4 Inch Flare Liquid Line AC Universal\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade filter drier 1\/4 inch flare liquid line ac universal for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eFilter Drier 1\/4 Inch Flare Liquid Line AC Universal\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004090040691,"sku":"NHVAC-REFR-FTRRSZ","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61LEAVHkYUL._AC_SL1500_62cff817-0595-4211-adb8-30987bdc254b.jpg?v=1781919171"},{"product_id":"schrader-valve-core-1-4-sae-r410a-r22-brass-20-pack","title":"Schrader Valve Core 1\/4 SAE R410A R22 Brass 20 Pack","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eSchrader Valve Core 1\/4 SAE R410A R22 Brass 20 Pack\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade schrader valve core 1\/4 sae r410a r22 brass 20 pack for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eSchrader Valve Core 1\/4 SAE R410A R22 Brass 20 Pack\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004090073459,"sku":"NHVAC-REFR-S1GJ1M","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/618H7tdhBYL._AC_SL1500.jpg?v=1781918180"},{"product_id":"service-valve-access-fitting-1-4-sae-piercing-tap-saddle-r410a","title":"Service Valve Access Fitting 1\/4 SAE Piercing Tap Saddle R410A","description":"\u003cdiv class=\"product-content\"\u003e\n  \u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003eService Valve Access Fitting 1\/4 SAE Piercing Tap Saddle R410A\u003c\/h2\u003e\n    \u003cp\u003eProfessional-grade service valve access fitting 1\/4 sae piercing tap saddle r410a for HVAC refrigeration system installation and repair. Ships same-day from Houston.\u003c\/p\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eProfessional quality for HVAC\/R systems\u003c\/li\u003e\n\u003cli\u003eIndustry-standard sizing and materials\u003c\/li\u003e\n\u003cli\u003eCompatible with all common refrigerants\u003c\/li\u003e\n\u003cli\u003eShips same-day from Houston\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eSpecifications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eMaterial: Copper\u003c\/li\u003e\n\u003cli\u003eApplication: HVAC\/R systems\u003c\/li\u003e\n\u003c\/ul\u003e\n    \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n    \u003cul\u003e\u003cli\u003eService Valve Access Fitting 1\/4 SAE Piercing Tap Saddle R410A\u003c\/li\u003e\u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003eShips same-day\u003c\/strong\u003e from our Houston warehouse on orders placed before 3PM CST.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eWhat size line set do I need for my mini split?\u003c\/h4\u003e\n\u003cp\u003eCheck your mini split's installation manual. Most 9,000-12,000 BTU units use 1\/4\" x 3\/8\". Larger 18,000-24,000 BTU units typically use 1\/4\" x 1\/2\" or 3\/8\" x 5\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eDo I need to add refrigerant with a longer line set?\u003c\/h4\u003e\n\u003cp\u003eMost mini splits come pre-charged for up to 25 feet of line set. If your run exceeds the factory charge length, additional refrigerant must be added per the manufacturer's specification (usually 0.6 oz per extra foot).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eCan I cut the line set shorter?\u003c\/h4\u003e\n\u003cp\u003eYes, but you must re-flare the cut end using a proper flaring tool. Never use compression fittings on refrigerant lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch4\u003eAre the connections flared or do I need to braze?\u003c\/h4\u003e\n\u003cp\u003eMini split line sets come pre-flared for flare nut connections — no brazing required. This makes DIY installation feasible for capable homeowners.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63004090138995,"sku":"NHVAC-REFR-LPWS69","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/618H7tdhBYL._AC_SL1500_13085e65-66dc-4b92-937f-5c828ac9b2a7.jpg?v=1781918183"}],"url":"https:\/\/nationalhvacparts.com\/collections\/refrigerant-line-sets-fittings.oembed","provider":"National HVAC Parts","version":"1.0","type":"link"}