{"product_id":"noise-reduction-clamp-duct-coupler-with-stainless-steel-clamps-4-inch","title":"AC Infinity 4-Inch Flexible Rubber Noise-Reduction Duct Coupler","description":"\u003cp\u003eThe \u003cstrong\u003eAC Infinity AC-RCA4\u003c\/strong\u003e is a heavy-duty rubber coupling designed to connect inline fans, carbon filters, silencers and rigid duct ports. Made from durable \u003cstrong\u003eNitrile Butadiene Rubber (NBR Grade 65A)\u003c\/strong\u003e with a matte black finish, it slips over solid duct flanges to absorb motor vibration, reduce sound transfer and help maintain efficient airflow in HVAC and indoor cultivation setups.\u003c\/p\u003e\n\u003cp\u003eTwo stainless steel worm-drive clamps sit in moulded exterior channels to provide a uniform, non-slip grip under continuous fan vibration. An internal centre lip keeps metal duct ports separated, helping to prevent metal-to-metal rattling and high-frequency turbulence noise.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration and acoustic isolation:\u003c\/strong\u003e Thick NBR rubber helps dampen motor vibration and fan noise before it travels along rigid ducting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirtight rubber seal:\u003c\/strong\u003e The flexible collar conforms around duct ports to help prevent odour bypass, pressure loss and air leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal separator lip:\u003c\/strong\u003e Keeps metal fan flanges and carbon-filter collars apart to reduce vibration transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoulded clamp channels:\u003c\/strong\u003e Hold the two stainless steel worm-drive clamps securely in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-free slip-on connection:\u003c\/strong\u003e Fits over metal flanges, carbon-filter necks and inline fan ports for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 4-inch fit:\u003c\/strong\u003e Designed for 4-inch inline fans, carbon filters, dampers and silencers.\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eNoise-Reduction Clamp, 4-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-RCA4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC barcode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e819137023529\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible duct opening size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in (10.2 cm) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoupler material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNitrile Butadiene Rubber (NBR Grade 65A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFastener material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo stainless steel worm-drive clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour and finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMatte black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScrew-drive compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual-head, Phillips and slotted flat-head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAcoustic isolation and airtight duct connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eReal-World Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor cultivation ventilation:\u003c\/strong\u003e Couples a 4-inch inline exhaust fan, such as a CLOUDLINE S4 or T4, to a 4-inch carbon filter without additional flexible ducting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic silencer and fan isolation:\u003c\/strong\u003e Mounts between exhaust fans and duct silencers to help reduce vibration transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResidential HVAC and workshop venting:\u003c\/strong\u003e Connects rigid metal ducting, range-hood spigots and bathroom exhaust ports while helping suppress motor hum.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LED GROW SHOP UK","offers":[{"title":"Default Title","offer_id":58452932100427,"sku":"AC-RCA4","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/8101\/6651\/files\/StorePhoto1__27801.jpg?v=1789212153","url":"https:\/\/florifi.co.uk\/products\/noise-reduction-clamp-duct-coupler-with-stainless-steel-clamps-4-inch","provider":"Florifi","version":"1.0","type":"link"}