{"product_id":"oem-lennox-e1snsr55c-1-dirty-filter-switch-53w68","title":"OEM Lennox E1Snsr55C-1 Dirty Filter Switch — 53W68","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 53W68\u003c\/strong\u003e is a genuine OEM E1Snsr55C-1 dirty filter switch that monitors differential air pressure across the filter and signals when the filter has become restricted enough to impact system performance. Signs of a faulty filter switch include false dirty filter alerts, no alerts despite visibly clogged filters, or system faults tied to airflow sensing. This OEM replacement part is designed for direct compatibility with applicable Lennox systems, ensuring accurate filter monitoring and optimal indoor air quality management.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081027338611,"sku":"LNX-53W68","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-e1snsr55c-1-dirty-filter-switch-53w68","provider":"National HVAC Parts","version":"1.0","type":"link"}