{"product_id":"builders-best-110825-wmf621-foil-duct-ul181-3-inches-x-25-feet","title":"Builders Best 110825 Wmf621 Foil Duct UL181 (3 inches x 25 feet)","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eBuilders Best 110825 is a WMF621 wire-helix foil duct for HVAC systems, rated for low to medium operating pressures and listed to UL 181 as a Class 1 air connector. The duct features an encapsulated steel wire helix, multi-ply aluminum\/polyester laminate construction, and a smooth inner core for air-tight runs. It is intended for HVAC air distribution and is not for venting cooking, heating, or clothes-drying appliances unless approved by the appliance manufacturer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUL 181 Class 1 air connector label with UL sticker every 10 feet\u003c\/li\u003e\n  \u003cli\u003eEncapsulated steel wire helix with tear- and puncture-resistant multi-ply construction\u003c\/li\u003e\n  \u003cli\u003eAir-tight design with smooth inner core and steel wire support; maximum velocity rating 5000 fpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003e25-foot, 3-inch diameter UL181-listed wire-helix foil duct for low to medium pressure HVAC air distribution\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BUILDERS BEST\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 110825\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Builders Best\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN\u003c\/strong\u003e: 110825\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: WMF621\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 25 ft (300 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 3 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eListing \/ Label\u003c\/strong\u003e: UL 181 Class 1 air connector; UL sticker every 10 ft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: Encapsulated steel wire helix; multi-ply aluminum\/polyester laminate; metalized polyester; smooth inner core\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Pitch\u003c\/strong\u003e: 3\/4 in (pitch) for 3 in diameter (manufacturer-stated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Velocity Rating\u003c\/strong\u003e: 5000 fpm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntended Use\u003c\/strong\u003e: HVAC air distribution for low to medium operating pressures (not for venting appliances unless approved by appliance manufacturer)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimitations\u003c\/strong\u003e: Not for use to vent cooking, heating, or clothes-drying appliances unless appliance manufacturer approves\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 722048108257\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging\u003c\/strong\u003e: Bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance Level\u003c\/strong\u003e: PRO\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"BUILDERS BEST","offers":[{"title":"Default Title","offer_id":51500353126706,"sku":"110825","price":48.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/314725786.webp?v=1784684433","url":"https:\/\/voomisupply.com\/products\/builders-best-110825-wmf621-foil-duct-ul181-3-inches-x-25-feet","provider":"Voomi Supply","version":"1.0","type":"link"}