---
product_id: 256031722
title: "Inline Duct Fan Silencer, 4” Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems"
brand: "ac infinity"
price: "€ 149.62"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ac Infinity"
url: https://www.desertcart.fi/products/256031722-inline-duct-fan-silencer-4-noise-reduction-muffler-blower-silencer
store_origin: FI
region: Finland
---

# 4-inch duct diameter 50% noise reduction corrosion-resistant steel body Inline Duct Fan Silencer, 4” Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems

**Brand:** ac infinity
**Price:** € 149.62
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence your space, amplify your focus.

## Quick Answers

- **What is this?** 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?** € 149.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/256031722-inline-duct-fan-silencer-4-noise-reduction-muffler-blower-silencer)

## 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

- • **Seamless Fit:** Dual aluminum flanges absorb vibrations and ensure easy installation.
- • **Built to Last:** Durable galvanized steel withstands extreme temps and corrosion.
- • **Versatile Application:** Perfect for hydroponics, HVAC, AV rooms, and bathroom vents.
- • **Whisper-Quiet Ventilation:** Cut fan noise by up to 50% with advanced neoprene foam tech.
- • **Max Airflow, Minimal Distraction:** Egg crate foam muffles sound without compromising airflow.

## Overview

The AC Infinity Inline Duct Fan Silencer is a premium 4-inch muffler designed to reduce ventilation noise by up to 50% using high-grade neoprene foam and dual aluminum flanges. Its corrosion-resistant galvanized steel body ensures durability under extreme conditions, 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.

Review: Definitely makes it a bit quieter
Review: Der Rohrschalldämpfer ist von hoher Qualität und senkt den Geräuschpegel merklich ab - geschätzt 25 % weniger - er macht also was er soll, daher eine klare Kaufempfehlung von mir 👍

## 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 | #107,290 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #147 in Heating & Cooling Ducting Products |
| Brand | AC Infinity |
| Customer Reviews | 4.5 4.5 out of 5 stars (369) |
| Date First Available | 8 January 2020 |
| Item Weight | 1.04 Kilograms |
| Material | Neoprene |
| Model Number | AC-DSA4 |
| Package Dimensions | 40.6 x 20.1 x 19.3 cm; 1.04 kg |

## Product Details

- **Brand:** AC Infinity
- **Configuration:** Dual/Dual
- **Item weight:** 2.3 Pounds
- **Material:** Neoprene
- **Shape:** Round

## Images

![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)

## 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*

Definitely makes it a bit quieter

### ⭐⭐⭐⭐⭐ Review
*by T***I on 18 October 2025*

Der Rohrschalldämpfer ist von hoher Qualität und senkt den Geräuschpegel merklich ab - geschätzt 25 % weniger - er macht also was er soll, daher eine klare Kaufempfehlung von mir 👍

### ⭐⭐⭐⭐⭐ Review
*by A***S on 23 November 2025*

Macht was es soll Abluft in Verbindung mit Phonetec Abluftschlauch kaum zu hören

## 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?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fi/products/256031722-inline-duct-fan-silencer-4-noise-reduction-muffler-blower-silencer](https://www.desertcart.fi/products/256031722-inline-duct-fan-silencer-4-noise-reduction-muffler-blower-silencer)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-24*