{"product_id":"oem-lennox-heat-exchanger-assembly-large-4t-with-vest-panel-12k45","title":"OEM Lennox Heat Exchanger Assembly Large 4T With Vest Panel — 12K45","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 12K45\u003c\/strong\u003e is a genuine OEM large 4-ton heat exchanger assembly with vest panel, manufactured to exact Lennox specifications for compatible furnace systems. This essential component ensures that combustion byproducts remain safely separated from the conditioned air circulating through your home. If your Lennox furnace is exhibiting symptoms such as cracks in the exchanger, carbon monoxide alerts, or diminished heating output, this direct OEM replacement restores factory-level safety and efficiency.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081063711091,"sku":"LNX-12K45","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-large-4t-with-vest-panel-12k45","provider":"National HVAC Parts","version":"1.0","type":"link"}