{"product_id":"thermaflex-56310000002-insulated-flex-duct-10-in-25-ft-r8","title":"Thermaflex 56310000002 Insulated Flex Duct 10 in 25 Ft R8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe THERMAFLEX 56310000002 is a Flex-Vent KM Series insulated flexible air duct designed for residential and light commercial HVAC distribution systems. Built with a polyester and steel construction and a silver outer jacket, this duct delivers an R-8 insulation value to minimize heat loss and condensation along supply runs. It ships in a 25-foot length with a 10-inch diameter, suited for trunk-to-register connections where maintaining conditioned air temperature and velocity is critical. HVAC installers rely on this duct for its 5,000 FPM velocity rating and wide operating range of -20 to 250 degrees F.\u003c\/p\u003e\u003cp\u003eThis flexible duct is appropriate for supply air distribution in forced-air heating and cooling systems in residential construction and light commercial applications. The 10-inch diameter accommodates high-volume supply runs off larger plenums or duct boards. Its 10 in-WG positive and 0.5 in-WG negative pressure ratings make it compatible with standard air handler and furnace blower systems. The R-8 insulation rating meets or exceeds energy code requirements in most jurisdictions, making it a common choice for attic and unconditioned-space runs where thermal performance is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eR-8 insulation value reduces heat gain and loss in unconditioned spaces\u003c\/li\u003e\n\u003cli\u003e10-inch diameter, 25-foot length covers standard long supply runs\u003c\/li\u003e\n\u003cli\u003e5,000 FPM velocity rating supports high-output air handler systems\u003c\/li\u003e\n\u003cli\u003ePositive pressure rating of 10 in-WG for robust system compatibility\u003c\/li\u003e\n\u003cli\u003eOperating range of -20 to 250 degrees F suits heating and cooling applications\u003c\/li\u003e\n\u003cli\u003e0.05 perm vapor transmission rating helps control moisture migration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-installation flexible duct for residential and light commercial forced-air HVAC supply systems requiring a 10-inch diameter, R-8 insulated duct connection.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician in accordance with ACCA Manual D and local mechanical codes. Shut down and lock out the air handling system before connecting or disconnecting duct sections. Secure both ends with approved clamps and mastic or UL 181B-listed tape — do not use standard cloth duct tape. Avoid sharp bends that exceed the duct's minimum bend radius, as they reduce airflow and can cause liner separation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 25 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-Value\u003c\/strong\u003e: R-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVelocity Rating\u003c\/strong\u003e: 5,000 FPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pressure Rating\u003c\/strong\u003e: 10 in-WG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative Pressure Rating\u003c\/strong\u003e: 0.5 in-WG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e: -20 to 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVapor Transmission\u003c\/strong\u003e: 0.05 perm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polyester and Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket Color\u003c\/strong\u003e: Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Domestic\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: THERMAFLEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 56310000002\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"THERMAFLEX","offers":[{"title":"Default Title","offer_id":51621279269170,"sku":"056310000002","price":124.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9d4bf1bfc17e66c4fc31f8686cda7357_b5d44e45-bb5f-4e19-a60b-e451e6438357.jpg?v=1787352289","url":"https:\/\/voomisupply.com\/products\/thermaflex-56310000002-insulated-flex-duct-10-in-25-ft-r8","provider":"Voomi Supply","version":"1.0","type":"link"}