{"product_id":"oem-trane-differential-pressure-switch-cnt03520","title":"OEM Trane Differential Pressure Switch — CNT03520","description":"\u003cp\u003eGenuine OEM Trane \u003cstrong\u003eCNT03520\u003c\/strong\u003e differential pressure switch. This safety control senses the pressure difference across the venting or blower to confirm proper airflow before ignition — a failing switch causes lockouts, no-heat calls, or short cycling. Direct factory-spec replacement ensures reliable operation and correct fit for your Trane furnace.\u003c\/p\u003e","brand":"Trane","offers":[{"title":"Default Title","offer_id":63083410522483,"sku":"TRN-CNT03520","price":28.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-trane-differential-pressure-switch-cnt03520","provider":"National HVAC Parts","version":"1.0","type":"link"}