--- product_id: 500770680 title: "AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch" brand: "ac infinity" price: "€ 52.93" currency: EUR in_stock: true reviews_count: 11 category: "Ac Infinity" url: https://www.desertcart.hr/products/500770680-ac-infinity-noise-reduction-clamp-200mm-duct-coupler-with-stainless store_origin: HR region: Croatia --- # Noise-absorbing rubber design Adjustable stainless steel worm-drive clamps 8-inch flexible rubber coupling AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch **Brand:** ac infinity **Price:** € 52.93 **Availability:** βœ… In Stock ## Summary > πŸ”§ Lock in airflow, lock out noise β€” the pro’s choice for duct perfection! ## Quick Answers - **What is this?** AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch by ac infinity - **How much does it cost?** € 52.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/500770680-ac-infinity-noise-reduction-clamp-200mm-duct-coupler-with-stainless) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Heavy-Duty Flexibility:** Durable nitrile butadiene rubber adapts to duct ports with ease - β€’ **Seamless Airtight Seal:** Prevents airflow leaks for maximum HVAC efficiency - β€’ **Versatile Compatibility:** Fits inline fans, carbon filters, and ducting in grow rooms and HVAC setups - β€’ **Whisper-Quiet Operation:** Absorbs vibrations and sound waves to reduce noise pollution - β€’ **Precision Locking Clamps:** Stainless steel worm-drive fasteners ensure a rock-solid hold ## Overview The AC Infinity Noise Reduction Clamp is an 8-inch flexible rubber duct coupler designed for airtight connections in HVAC and grow room systems. Constructed from heavy-duty nitrile butadiene rubber, it minimizes noise by absorbing vibrations and sound waves. Dual stainless steel worm-drive clamps provide adjustable, secure fastening to prevent leaks and optimize airflow efficiency. ## Description Product Description A rubber clamp designed to connect duct ports with a secure and airtight grip to prevent any loss of airflow. The nitrile butadiene rubber structure fits smoothly over ports and piping thanks to its flexible and adaptable build. The heavy-duty rubber construction also suppresses noise and vibrations by absorbing sound waves, creating a quieter growing or HVAC environment. To ensure an even tighter connection, you can adjust the stainless-steel fasteners with worm drive locks, which are built into ribbed grooves along the rubber clamp to lock it in place. Applications This matte black coupler fits securely over ducting and piping components. Its durable rubber design prevents air leaks and reduces noise in grow rooms, grow tents, and HVAC settings. This simple and effective clamp provides the perfect support for ducting, carbon filters, inline fans, mounting grilles, dampers, and more. Noise Reduction Clamp A heavy-duty rubber coupler for pairing ducted components with a firm grip to prevent leaks and minimize noise. Prevent Leaks with a Sealed Connection When setting up a duct system, ensuring a secure connection is vital for effective airflow. Leaks can lead to an array of complications, ranging from higher bills to lower air quality. This duct coupler will firmly fit over ports and piping with an airtight grip, increasing both efficiency and effectiveness! Key Features Durable Build Heavy-duty matte black coupling is constructed of nitrile butadiene rubber for a long-lasting and secure hold in growing and HVAC applications. Sealed Protection Dual stainless-steel fasteners tighten the connection between ducting components by utilizing worm drive locks to strengthen the seal. Noise Reduction The rubber design with a ribbed inner lip absorbs fan vibrations and suppresses soundwaves in duct systems to support a quieter environment. Flexible Fit The versatile design delivers a smooth fit and easy installation over ports to connect fans, filters, dampeners, and more for a perfect pairing. Review: Ac infinity - They do the job Review: Excellent product - Used to connect the ventilation hose in my sailing boat to the inlet blower onboard. Excellent fit. Highly recommend it. Great value for money. ## Features - Rubber pipe coupling designed to securely pair ducted components together while preventing air leaks. - Matte black rubber construction is flexible, heavy-duty, and can easily fit over duct ports and piping. - Minimizes noise by absorbing sound waves from fan vibrations and airflow traveling through ductwork. - Creates an airtight seal and hold using adjustable stainless steel hose clamps with worm drive locks. - 8 inch coupler fits inline fans and carbon filters with solid duct ports in growing and HVAC settings. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B6KGYCDL | | Best Sellers Rank | 24,654 in DIY & Tools ( See Top 100 in DIY & Tools ) 111 in Ducting | | Brand | AC Infinity | | Colour | Black | | Connector Type | Coupling | | Connector type | Coupling | | Country of Origin | China | | Customer Reviews | 4.8 out of 5 stars 1,009 Reviews | | Manufacturer | AC Infinity | | Material | Rubber , Stainless Steel | | Number of Packs | 1 | | Set Name | Duct Coupler Set (1 Piece) | | Size | 8 inch | | UPC | 819137023543 | | Unit Count | 1.0 count | ## Product Details - **Brand:** AC Infinity - **Colour:** Black - **Connector type:** Coupling - **Manufacturer:** AC Infinity - **Material:** Rubber, Stainless Steel - **Number of Packs:** 1 - **Size:** 8 inch - **UPC:** 819137023543 - **Unit count:** 1.0 count ## Images ![AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch - Image 1](https://m.media-amazon.com/images/I/51je3wPih2L.jpg) ![AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch - Image 2](https://m.media-amazon.com/images/I/71fzSZUHiKL.jpg) ![AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch - Image 3](https://m.media-amazon.com/images/I/61j3MafabLL.jpg) ![AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch - Image 4](https://m.media-amazon.com/images/I/61KjIA7mtfL.jpg) ![AC Infinity Noise Reduction Clamp 200mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 8-Inch - Image 5](https://m.media-amazon.com/images/I/61xEdLZzEcL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I see the inside diameter, but what is the width?** A: About 3” **Q: what is ID and OD?** A: Inner dimension & Outter dimension **Q: Do they make them for 10 inch fans?** A: Yes they do, Cloudline T10 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Ac infinity *by W***D on 22 March 2026* They do the job ### ⭐⭐⭐⭐⭐ Excellent product *by S***7 on 22 November 2025* Used to connect the ventilation hose in my sailing boat to the inlet blower onboard. Excellent fit. Highly recommend it. Great value for money. ### ⭐⭐⭐⭐⭐ Most useful for use with Portable Air Conditioners! *by B***I on 17 July 2025* I had two issues once it came to connecting my portable AC’s Exhaust Duct to a window with Louvered Air Vent (1) Extending the Exhaust Duct by connecting it to another of similar diameter. (2) Connecting the extension to an Air Vent with an inlet of similar diameter. I tried numerous contraptions and wasted many hours, before I came to this one. And this has been a true life saver. It does both jobs amazingly well. Quality is second to none; as it appears to be robust and esthetically pleasing! Ordering another as a spare and highly recommended! ## Frequently Bought Together - AC Infinity Noise Reduction Clamp 8-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC - AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - AC Infinity Flexible 8-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/500770680-ac-infinity-noise-reduction-clamp-200mm-duct-coupler-with-stainless](https://www.desertcart.hr/products/500770680-ac-infinity-noise-reduction-clamp-200mm-duct-coupler-with-stainless) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-14*