{"product_id":"williams-comfort-products-isfxtm613-thermocouple-extension","title":"Williams Comfort Products ISFXTM613 Thermocouple Extension","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WILLIAMS COMFORT PRODUCTS ISFXTM613 is a flexible thermocouple extension designed for use in gas-fired heating appliances. It measures 6 inches in length with a 13mm, 3\/8-inch square fitting configuration. This component extends or replaces the thermocouple lead assembly in standing-pilot gas heaters and wall furnaces, allowing the sensing element to reach the pilot flame without rigid routing constraints. HVAC technicians and gas appliance service professionals install this part during thermocouple replacement or pilot assembly repair.\u003c\/p\u003e\n\u003cp\u003eThis flexible thermocouple extension is suited for residential and light-commercial gas heating applications, including wall heaters and vented room heaters that use standing-pilot ignition systems. Its flexible construction allows for routing in tight spaces where a rigid thermocouple lead cannot be properly positioned. It is sold individually and is intended for professional installation in equipment requiring a 13mm, 3\/8-inch square thermocouple connection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e6-inch flexible extension for routing in confined pilot assembly areas\u003c\/li\u003e\n  \u003cli\u003e13mm diameter with 3\/8-inch square fitting for secure thermocouple connections\u003c\/li\u003e\n  \u003cli\u003eFlexible construction accommodates non-linear routing without kinking\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit, sized for direct replacement in compatible pilot assemblies\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.52 pounds for easy handling during service calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement thermocouple extension for gas-fired wall heaters and room heaters using standing-pilot ignition systems with 13mm, 3\/8-inch square thermocouple connections.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified gas appliance service professional. Shut off the gas supply and allow the appliance to cool completely before servicing the pilot assembly or thermocouple components. Ensure all connections are snug and free of cross-threading before restoring gas flow. Follow all applicable local gas codes and manufacturer service procedures when replacing thermocouple components.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 13mm, 3\/8-inch square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.52 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 662459334954\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WILLIAMS COMFORT PRODUCTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ISFXTM613\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WILLIAMS COMFORT PRODUCTS","offers":[{"title":"Default Title","offer_id":51343185543474,"sku":"ISFXTM613","price":113.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310543345.jpg?v=1782019363","url":"https:\/\/voomisupply.com\/products\/williams-comfort-products-isfxtm613-thermocouple-extension","provider":"Voomi Supply","version":"1.0","type":"link"}