{"product_id":"oem-lennox-supco-at021-adjustable-thermostat-74t12-style-y8840","title":"OEM Lennox Supco AT021 Adjustable Thermostat 74T12 Style — Y8840","description":"\u003cp\u003eThe \u003cstrong\u003eLennox Y8840\u003c\/strong\u003e is an OEM Supco AT021 adjustable thermostat in the 74T12 style, replacing part number 310708, designed to provide reliable and precise temperature sensing and control within Lennox HVAC systems. If your system is short-cycling, failing to maintain set temperatures, or not responding correctly to temperature changes, a faulty thermostat like this may be the cause. This genuine Lennox OEM replacement part ensures correct fit and performance for compatible Lennox heating and cooling equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081020686707,"sku":"LNX-Y8840","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-supco-at021-adjustable-thermostat-74t12-style-y8840","provider":"National HVAC Parts","version":"1.0","type":"link"}