{"product_id":"gray-flex-06-4gf-6_bag-silver-insulated-flex-duct-r6-6-inches-x-25-feet","title":"Gray Flex 06-4GF-6_BAG Silver Insulated Flex Duct R6 6 Inches X 25 Feet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Gray Flex 06-4GF-6_BAG is a silver insulated flexible air duct rated at R6 insulation value. It measures 6 inches in inside diameter and comes in a 25-foot length, packaged as a single bag. This product is part of the Gray Flex 4GF-6 line, which is tested and listed in accordance with U.L. 181 standards. It is approved for use as a Class 1 air duct material, making it a code-compliant choice for residential and light commercial HVAC installations.\u003c\/p\u003e\u003cp\u003eThe duct features an exclusive patented reinforced inner liner that creates an airtight core. This core helps maintain airflow efficiency and prevents air leakage throughout the duct run. Surrounding the core is a layer of fiberglass insulation that is a minimum of 2 inches thick. This insulation thickness is what delivers the R6 thermal performance, helping reduce heat gain or loss as conditioned air travels through the duct system.\u003c\/p\u003e\u003cp\u003eThe outer jacket is a scrim-reinforced metalized polyester vapor barrier. This silver outer layer protects the insulation from moisture infiltration and physical damage. The jacket is printed with certification labels, foot markers, size data, and performance information every 24 inches, with additional foot markers every 12 inches. This makes field installation faster and more accurate for HVAC technicians working in tight spaces or on overhead runs.\u003c\/p\u003e\u003cp\u003eThe 06-4GF-6_BAG handles an operating temperature range of -20F to 250F, making it suitable for both heating and cooling applications. The pressure rating is 10 inches positive and 3\/4 inches W.G. negative per U.L. 181. The fire rating meets maximum flame spread of 25 and maximum smoke developed of 50, which are standard Class 1 air duct requirements.\u003c\/p\u003e\u003cp\u003eThis flex duct is a reliable supply for HVAC contractors, sheet metal installers, and mechanical contractors who need UL 181 listed insulated flex duct for residential or commercial projects.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eR6 insulation rating with minimum 2-inch-thick fiberglass insulation for superior thermal performance\u003c\/li\u003e\n\u003cli\u003eUL 181 Class 1 listed air duct material with scrim-reinforced metalized polyester vapor barrier jacket\u003c\/li\u003e\n\u003cli\u003eRated for -20F to 250F operating temperatures and 10 inches positive pressure per U.L. 181\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Gray Flex 06-4GF-6_BAG delivers UL 181 Class 1 certified R6 insulated flex duct performance in a 6-inch diameter, 25-foot length. It is built for HVAC professionals who need dependable, code-compliant duct material for heating and cooling system installations.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GRAY FLEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 06-4GF-6_BAG\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlex Type\u003c\/strong\u003e: Insulated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-Value\u003c\/strong\u003e: R6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Thickness\u003c\/strong\u003e: Minimum 2 inches fiberglass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material\u003c\/strong\u003e: Exclusive patented reinforced inner liner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Jacket\u003c\/strong\u003e: Scrim-reinforced metalized polyester vapor barrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e: -20F to 250F (-28.8C to 121.1C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e: 10 inches positive, 3\/4 inches W.G. negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 10 inches positive, 3\/4 inches W.G. negative per U.L. 181\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Rating\u003c\/strong\u003e: Maximum flame spread: 25; Maximum smoke developed: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL Listing\u003c\/strong\u003e: U.L. 181 Class 1 Air Duct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 25 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 687410304142\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAY FLEX","offers":[{"title":"Default Title","offer_id":51120710746418,"sku":"06-4GF-6_BAG","price":58.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304885150.webp?v=1777738880","url":"https:\/\/voomisupply.com\/products\/gray-flex-06-4gf-6_bag-silver-insulated-flex-duct-r6-6-inches-x-25-feet","provider":"Voomi Supply","version":"1.0","type":"link"}