{"product_id":"oem-lennox-100679-35-valve-expansion-r410-92psig-59w21","title":"OEM Lennox 100679-35 Valve-Expansion R410 92Psig — 59W21","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 59W21\u003c\/strong\u003e (OEM reference 100679-35) is a genuine R410A thermostatic expansion valve rated at 92+2 Psig, engineered to deliver precise refrigerant metering for consistent and efficient system performance in compatible Lennox equipment. Symptoms of a failing expansion valve include insufficient cooling, frost buildup on the evaporator coil, fluctuating suction line pressures, and compressor short cycling. This OEM Lennox part ensures a factory-fit replacement that restores proper refrigerant flow and system reliability.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081023701363,"sku":"LNX-59W21","price":59.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-100679-35-valve-expansion-r410-92psig-59w21","provider":"National HVAC Parts","version":"1.0","type":"link"}