{"product_id":"oem-lennox-100679-21-valve-expansion-r410-42w34","title":"OEM Lennox 100679-21 Valve-Expansion (R410) — 42W34","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 42W34\u003c\/strong\u003e (OEM reference 100679-21) is a genuine factory-original R410A thermostatic expansion valve that controls the flow of refrigerant into the evaporator coil to maintain proper system superheat and efficiency. Common signs of a failing expansion valve include inconsistent cooling, frost buildup on the evaporator, or unusually high or low suction line pressures. This OEM Lennox part is manufactured to precise specifications to ensure a direct, reliable fit for compatible Lennox R410A systems.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081023406451,"sku":"LNX-42W34","price":59.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-100679-21-valve-expansion-r410-42w34","provider":"National HVAC Parts","version":"1.0","type":"link"}