{"product_id":"ac-infinity-backdraft-damper-ducting-insert-6-inch-black-galvanized-steel","title":"AC Infinity 6-Inch Backdraft Damper Duct Insert","description":"\u003cp\u003e\u003cstrong\u003eHeavy-duty 6-inch backdraft damper duct insert for preventing cold drafts, wind, moisture and debris from travelling back through ventilation lines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAC Infinity AC-BDD6-B\u003c\/strong\u003e is a one-way airflow valve designed for installation inside 6-inch flexible or rigid ducting. Its powder-coated galvanised steel body features dual outer rubber gaskets that grip the duct walls to create a snug, airtight friction seal.\u003c\/p\u003e\n\n\u003cp\u003eInside the 5.03-inch steel body, lightweight aluminium butterfly blades are supported by a spring-loaded hinge mechanism. The blades open with minimal static pressure from inline exhaust fans, range hoods or bathroom blowers, then close when airflow stops to help prevent cold-air infiltration and external draft backflow.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalvanised steel body and aluminium blades:\u003c\/strong\u003e A corrosion-resistant metal construction designed to withstand heat, air velocity and continuous moisture.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual outer rubber gaskets:\u003c\/strong\u003e Help hold the insert securely inside rigid or flexible ducting without external screws or metal clamps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring-loaded butterfly valve:\u003c\/strong\u003e Opens under low fan pressure and closes promptly when airflow stops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorizontal or vertical installation:\u003c\/strong\u003e Suitable for vertical riser ducts and horizontal ventilation runs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable powder-coated finish:\u003c\/strong\u003e Helps protect the galvanised steel housing against rust and humidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eTechnical parameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand \/ manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC Infinity Inc.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBackdraft Damper, 6-Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC-BDD6-B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC barcode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e819137021310\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuct opening size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 in (15.2 cm) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.03 in (12.8 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGalvanised steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShutter \/ blade material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium, spring-loaded butterfly type\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSealing system\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual outer rubber friction gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExterior finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack powder-coated finish\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrientation compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHorizontal or vertical mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eReal-World Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKitchen range hoods and bathroom vents:\u003c\/strong\u003e Helps prevent cold outdoor air from leaking back into living spaces through exhaust lines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndoor cultivation exhaust lines:\u003c\/strong\u003e Helps reduce odour leakage and outdoor draft backflow through grow tent exhaust ports when inline fans cycle off.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTumble dryer and utility venting:\u003c\/strong\u003e Helps prevent wind gusts and pests from entering utility-room ventilation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LED GROW SHOP UK","offers":[{"title":"Default Title","offer_id":58452932460875,"sku":"AC-BDD6-B","price":18.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/8101\/6651\/files\/StorePhoto1__17276.jpg?v=1789212154","url":"https:\/\/florifi.co.uk\/products\/ac-infinity-backdraft-damper-ducting-insert-6-inch-black-galvanized-steel","provider":"Florifi","version":"1.0","type":"link"}