--- product_id: 452115487 title: "AC Infinity Inline Duct Fan Silencer, 4\" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems" brand: "ac infinity" price: "VT78858" currency: VUV in_stock: true reviews_count: 5 category: "Ac Infinity" url: https://www.desertcart.vu/products/452115487-ac-infinity-inline-duct-fan-silencer-4-noise-reduction-muffler store_origin: VU region: Vanuatu --- # 4-inch duct diameter 50% noise reduction corrosion-resistant galvanized steel AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems **Brand:** ac infinity **Price:** VT78858 **Availability:** βœ… In Stock ## Summary > πŸ”‡ Silence your space, amplify your focus. ## Quick Answers - **What is this?** AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems by ac infinity - **How much does it cost?** VT78858 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/452115487-ac-infinity-inline-duct-fan-silencer-4-noise-reduction-muffler) ## 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€’ **Seamless Fit:** Dual aluminum flanges absorb vibrations and ensure easy installation. - β€’ **Built to Last:** Durable galvanized steel body resists corrosion and extreme temps. - β€’ **Maximized Airflow:** Egg crate foam design muffles sound without sacrificing airflow efficiency. - β€’ **Versatile Application:** Perfect for grow tents, HVAC, AV rooms, and bathroom ventilation. - β€’ **Whisper-Quiet Performance:** Cut fan noise by up to 50% with advanced neoprene foam tech. ## Overview The AC Infinity Inline Duct Fan Silencer is a premium 4-inch noise reduction muffler designed to cut fan noise by up to 50% using high-grade neoprene foam and dual aluminum flanges. Its corrosion-resistant galvanized steel body withstands extreme temperatures, making it ideal for hydroponic grow tents, HVAC systems, and quiet home or office environments. ## Description Product DescriptionA ventilation ducting tool designed to dampen or reduce noise coming from airflow in grow tent or server closet ventilation systems. It utilizes high-grade neoprene foam crafted in a wave crest pattern that diminishes sound wave movement, reducing noise pollution by up to 50%. The egg crate foam muffles sound vibration while allowing maximum airflow passthrough for both intake and exhaust configurations. Both aluminum flange openings also assist in absorbing sound waves from vibrations, seamlessly fitting over your inline duct fan’s flange. Each silencer is built with a solid galvanized steel body that is corrosion-resistant and can withstand extreme temperature changes.ApplicationsThe duct silencer is often paired with inline extractor fans in grow tents and hydroponic grow room applications. It can be installed anywhere in the ventilation system chain like in between the fan and ducting. The silencer can also be used in many home HVAC applications including AV equipment room cooling, closet cooling, and bathroom ventilation. This creates a comforting home environment that is quieter and more relaxing, or a workplace that is less distracting. ## Features - A duct muffler designed for use with inline fans in grow tents, bathroom fans and other HVAC applications. - Features dual aluminum flanges to help absorb sound waves from fan vibrations and airflow. - High-quality neoprene foam in an egg crate pattern that will reduce fan noise by up to 50%. - Galvanized steel body that is corrosion-resistant and can withstand extreme temperatures. - Duct Opening Diameter: 4 inches | Length: 15 inches | Weight: 2.30 pounds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0829GJ5Q7 | | Brand | AC Infinity | | Brand Name | AC Infinity | | Configuration | Dual/Dual | | Customer Reviews | 4.5 out of 5 stars 186 Reviews | | Global Trade Identification Number | 00819137021051 | | Item Shape | Round | | Item Weight | 2.3 Pounds | | Manufacturer | AC Infinity | | Manufacturer Part Number | AC-DSA4 | | Material | Alloy Steel , Aluminium | | Material Type | Alloy Steel, Aluminium | | Model | AC-DSA4 | | Shape | Round | | UPC | 819137021051 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** AC Infinity - **Configuration:** Dual/Dual - **Item Weight:** 1.04 kg - **Material:** Alloy Steel, Aluminium - **Shape:** Round ## Images ![AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - Image 1](https://m.media-amazon.com/images/I/51AYf5JWdAL.jpg) ![AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - Image 2](https://m.media-amazon.com/images/I/61bCcwazKEL.jpg) ![AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - Image 3](https://m.media-amazon.com/images/I/61RE0By2H6L.jpg) ![AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - Image 4](https://m.media-amazon.com/images/I/61wAniwlO7L.jpg) ![AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - Image 5](https://m.media-amazon.com/images/I/61HgnA0jqoL.jpg) ## Questions & Answers **Q: does this get installed before the fane for after the Fan and how far?** A: I've installed one before and one after - directly on the fan. I ultimately returned the one before the fan because the improvement was relatively minor. **Q: Can you connect these mufflers in series? And what impact does that have? e.g. one reduces 50% two reduces 75% ... and so forth?** A: I don’t think they can be used end to end but you can put one on either side of the fan and that should reduce the sound.... or if you’d like you can put one directly against the fan and then add another one at the end of a duct as well. I can’t give you any specific numbers though. **Q: Can I simple insert this silencer (not fan) before my output in my home music studio?** A: The openings on each side is 4" in diameter. I'm not sure exactly what your affixing this to but if it's similar to any duct opening you'll need a clamp or coupler. Hope this helps! **Q: Will this work on a radon fan system?** A: i dont know about a radon but ive used a hyperfan and it fits perfect. ive also used one of those cheap vivosun ones with the red fan blades and it is about a quarter inch smaller than the flange on th muffler. it does work well though. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by R***S on 22 October 2025* ### ⭐⭐⭐⭐⭐ Review *by T***I on 18 October 2025* ### ⭐⭐⭐⭐⭐ Review *by S***U on 21 September 2022* ## Frequently Bought Together - AC Infinity Inline Duct Fan Silencer, 4" Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems - AC Infinity Noise Reduction Clamp 4-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC - AC Infinity CLOUDLINE PRO T4, Quiet 4” Inline Duct Fan with Temperature Humidity VPD Controller, WiFi Integrated App Control - Ventilation Exhaust Fan for Heating Cooling, Grow Tents, Hydroponics --- ## 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.vu/products/452115487-ac-infinity-inline-duct-fan-silencer-4-noise-reduction-muffler](https://www.desertcart.vu/products/452115487-ac-infinity-inline-duct-fan-silencer-4-noise-reduction-muffler) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-04-24*