{"product_id":"quietflex-08512-flexible-duct-12-inch-r-8-0","title":"Quietflex 08512 Flexible Duct 12 Inch R-8.0","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe QUIETFLEX 08512 is a 12-inch nominal flexible duct with an R-8.0 insulation value, designed for residential and light commercial HVAC air distribution systems. Flexible duct of this type connects air handlers, furnaces, and fan coil units to diffusers and registers, routing conditioned air through unconditioned or semi-conditioned spaces such as attics and crawlspaces. The R-8.0 insulation rating helps limit heat transfer through the duct wall, reducing energy loss in systems where duct runs pass through unconditioned areas. HVAC installers and sheet metal contractors are the primary trades who work with this product.\u003c\/p\u003e\u003cp\u003eThis flexible duct is suited for residential new construction and retrofit applications where rigid duct is impractical or cost-prohibitive. The 12-inch nominal size accommodates larger trunk-line branches, main supply runs, and high-volume distribution points in central forced-air systems. It is sold as a single unit and is appropriate for installations requiring R-8.0 insulated flex duct per energy code requirements in many jurisdictions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e12-inch nominal duct diameter for high-volume air distribution\u003c\/li\u003e\n\u003cli\u003eR-8.0 insulation value meets energy code requirements in most U.S. jurisdictions\u003c\/li\u003e\n\u003cli\u003eFlexible construction allows routing around obstructions in tight or irregular spaces\u003c\/li\u003e\n\u003cli\u003eSuitable for supply-side air distribution in forced-air HVAC systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-construction flexible duct for residential and light commercial forced-air HVAC systems requiring a 12-inch nominal insulated flex duct.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eFlexible duct installation should be performed by a licensed HVAC technician or sheet metal contractor in accordance with ACCA Manual D and applicable local mechanical codes. Power down the air handling system at the disconnect before making duct connections. Avoid sharp bends, compression, or excessive sag in flex duct runs, as these conditions significantly increase static pressure and reduce system airflow. Secure all connections with approved clamps and mastic or UL 181B-listed tape per code requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-Value\u003c\/strong\u003e: R-8.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Flexible Duct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelling Unit\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: QUIETFLEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 08512\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QUIETFLEX","offers":[{"title":"Default Title","offer_id":68102960283954,"sku":"08512","price":133.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f3b550816f4c567a048dd258587a7b8.png?v=1793295356","url":"https:\/\/voomisupply.com\/products\/quietflex-08512-flexible-duct-12-inch-r-8-0","provider":"Voomi Supply","version":"1.0","type":"link"}