{"product_id":"oem-goodman-flowrator-inlet-tube-for-wahms3642p4aba-air-handler-b1796630","title":"OEM Goodman Flowrator Inlet Tube for WAHMS3642P4ABA Air Handler — B1796630","description":"\u003ch2\u003eGoodman B1796630 Flowrator Inlet Tube\u003c\/h2\u003e\u003cp\u003eThe Goodman B1796630 is a genuine OEM flowrator inlet tube used in the refrigerant metering assembly of \u003cstrong\u003eWAHMS3642P4ABA\u003c\/strong\u003e air handlers. The flowrator (piston-style metering device) controls refrigerant flow into the evaporator coil, and this inlet tube delivers liquid refrigerant to the metering piston at the correct port and angle. A correct tube is essential for proper superheat, coil temperature, and overall system efficiency.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: Refrigerant inlet feed to flowrator metering device\u003c\/li\u003e\n\u003cli\u003eMaterial: Copper refrigerant-grade tubing\u003c\/li\u003e\n\u003cli\u003eBrazed connection compatible\u003c\/li\u003e\n\u003cli\u003eFits: Goodman WAHMS3642P4ABA air handlers\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1796630\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eRefrigerant-side components must match length, diameter, and fitting type precisely. The genuine Goodman B1796630 is sized to the factory coil circuit, preventing restriction or improper metering. Non-OEM tubes risk incorrect charge behavior and coil freezing.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAdvanced.\u003c\/strong\u003e Replacement requires recovering refrigerant, brazing, evacuating, and recharging the system — EPA 608 certification is required. This is a job for a licensed HVAC technician, not a DIY repair.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Direct Replacement","offer_id":63032424923507,"sku":"B1796630-GEN","price":5.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048244920691,"sku":"B1796630","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-piston-B1796630_8fbaa76a-45e5-441f-8586-a38b84973d73.jpg?v=1782948494","url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-flowrator-inlet-tube-for-wahms3642p4aba-air-handler-b1796630","provider":"National HVAC Parts","version":"1.0","type":"link"}