{"product_id":"oem-lennox-r20431901-heat-exchanger-assembly-10u88","title":"OEM Lennox R20431901 Heat Exchanger Assembly — 10U88","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 10U88 (R20431901)\u003c\/strong\u003e is a factory-original OEM heat exchanger assembly built to Lennox's exact specifications for safe and efficient furnace operation. If your heat exchanger has developed cracks or corrosion, you may notice carbon monoxide warnings, short cycling on the high-limit switch, or a noticeable drop in heating performance. This genuine Lennox replacement part provides a direct OEM fit for compatible furnace models, ensuring long-lasting reliability and safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081063317875,"sku":"LNX-10U88","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-r20431901-heat-exchanger-assembly-10u88","provider":"National HVAC Parts","version":"1.0","type":"link"}