--- product_id: 452115487 title: "Inline Duct Fan Silencer 4\", Noise Reduction Muffler" brand: "ac infinity" price: "35597 som" currency: KGS in_stock: true category: "Ac Infinity" url: https://www.desertcart.kg/products/452115487-inline-duct-fan-silencer-4-noise-reduction-muffler store_origin: KG region: Kyrgyzstan --- # 50% noise reduction 4-inch duct opening for max airflow corrosion-resistant galvanized steel Inline Duct Fan Silencer 4", Noise Reduction Muffler **Brand:** ac infinity **Price:** 35597 som **Availability:** βœ… In Stock ## Summary > πŸ”‡ Silence your space, amplify your focus. ## Quick Answers - **What is this?** Inline Duct Fan Silencer 4", Noise Reduction Muffler by ac infinity - **How much does it cost?** 35597 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/452115487-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€’ **Built to Last:** Durable galvanized steel body resists corrosion and extreme temps. - β€’ **Effortless Installation:** Compact 4-inch diameter and 15-inch length fits standard inline duct fans. - β€’ **Whisper-Quiet Performance:** Cut fan noise by up to 50% with advanced neoprene foam tech. - β€’ **Versatile Ventilation Solution:** Perfect for grow tents, HVAC, bathroom fans, and AV cooling setups. - β€’ **Seamless Fit & Sound Absorption:** Dual aluminum flanges absorb vibrations for ultra-smooth airflow. ## Overview The AC Infinity Inline Duct Fan Silencer 4" is engineered to reduce 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 grow tents, HVAC systems, and home ventilation. Designed for 4-inch duct openings, it ensures maximum airflow while creating a quieter, more comfortable environment. ## 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 | | Best Sellers Rank | #1,922,364 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,065 in Exhaust Fans | | Brand Name | AC Infinity | | Configuration | Dual/Dual | | Country of Origin | USA | | Customer Reviews | 4.5 4.5 out of 5 stars (193) | | Global Trade Identification Number | 00819137021051 | | Item Highlight | Silencer for 4" Inline Duct Fans, Aluminum and Galvanized Steel Build, Indoor Hydroponics Grow Tent Ventilation Systems | | Item Shape | Round | | Item Weight | 1.04 kg | | Manufacturer | AC Infinity | | Manufacturer Part Number | AC-DSA4 | | Material Type | Alloy Steel, Aluminium | | Model | AC-DSA4 | | Number of Items | 1 | | 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 ![Inline Duct Fan Silencer 4", Noise Reduction Muffler - Image 1](https://m.media-amazon.com/images/I/51AYf5JWdAL.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. ## 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.kg/products/452115487-inline-duct-fan-silencer-4-noise-reduction-muffler](https://www.desertcart.kg/products/452115487-inline-duct-fan-silencer-4-noise-reduction-muffler) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-09-23*