{"product_id":"oem-lennox-txv-kit-non-bleed-r410a-air-handler-x4643","title":"OEM Lennox TXV Kit Non-Bleed R410A Air Handler — X4643","description":"\u003cp\u003eThe \u003cstrong\u003eLennox X4643\u003c\/strong\u003e is a genuine OEM Thermal Expansion Valve Kit designed for R410A refrigerant systems, specifically compatible with Lennox Air Handler Models 12 through 37, providing accurate refrigerant metering and consistent cooling performance. This non-bleed style TXV prevents refrigerant migration during the off cycle, protecting the compressor and improving system longevity. Signs of a failing TXV include poor cooling capacity, evaporator coil icing, unstable suction pressure, or compressor short cycling in your Lennox air handler system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081021342067,"sku":"LNX-X4643","price":59.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-txv-kit-non-bleed-r410a-air-handler-x4643","provider":"National HVAC Parts","version":"1.0","type":"link"}