---
product_id: 457705435
title: "Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch"
brand: "ac infinity"
price: "A$199"
currency: AUD
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.au/products/457705435-inline-duct-fan-silencer-100mm-noise-reduction-muffler-blower-silencer
store_origin: AU
region: Australia
---

# 100mm (4-inch) duct size 50% noise reduction corrosion-resistant steel Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch

**Brand:** ac infinity
**Price:** A$199
**Availability:** ❌ Out of Stock

## Summary

> 🔇 Silence your space, amplify your focus.

## Quick Answers

- **What is this?** Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch by ac infinity
- **How much does it cost?** A$199 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/457705435-inline-duct-fan-silencer-100mm-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

- • **Perfect Fit:** Standard 100mm (4-inch) diameter for seamless HVAC integration
- • **Built to Last:** Durable galvanized steel body resists corrosion and extreme temps
- • **Versatile Application:** Ideal for hydroponic grow tents, bath fans, and HVAC systems
- • **Whisper-Quiet Performance:** Cut fan noise by up to 50% with premium neoprene foam
- • **Vibration Absorbing Design:** Dual aluminum flanges dampen sound waves from airflow and fan vibration

## Overview

The AC Infinity Inline Duct Fan Silencer is a robust 4-inch muffler designed to reduce fan noise by up to 50% using high-quality neoprene egg crate foam and dual aluminum flanges. Its galvanized steel body ensures corrosion resistance and durability under extreme temperatures, making it perfect for hydroponic grow tents, bath fans, and HVAC ventilation systems.

## Description

AC Infinity Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch : desertcart.co.uk: Business, Industry & Science

Review: Works - Definitely makes it a bit quieter

## Features

- A duct muffler for use with in-line fans in grow tents, bath fans and other HVAC applications.
- Features two aluminum flanges to absorb sound waves from fan vibration and airflow.
- High quality neoprene egg crate pattern foam that reduces fan noise by up to 50%.
- Galvanised steel body that is corrosion resistant and can withstand extreme temperatures.
- Channel opening diameter 10.2 cm, length 38.1 cm, weight 1.0 kg

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0829GJ5Q7 |
| Best Sellers Rank | 45,913 in Garden ( See Top 100 in Garden ) 35 in Hydroponic Ventilation Equipment |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Configuration | Dual/Dual |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 185 Reviews |
| Global Trade Identification Number | 00819137021051 |
| Item Shape | Round |
| Item Weight | 1.04 kg |
| Item weight | 1.04 kg |
| Manufacturer | AC INFINITY |
| Manufacturer Part Number | AC-DSA4 |
| Material | Aluminium alloy steel |
| Material Type | Aluminium alloy steel |
| Shape | Round |
| UPC | 819137021051 |
| Unit Count | 1.0 Count |

## Product Details

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

## Images

![Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch - Image 1](https://m.media-amazon.com/images/I/51AYf5JWdAL.jpg)

## Available Options

This product comes in different **Size** options.

## 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

### ⭐⭐⭐⭐⭐ Works
*by R***S on 22 October 2025*

Definitely makes it a bit quieter

## 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.com.au/products/457705435-inline-duct-fan-silencer-100mm-noise-reduction-muffler-blower-silencer](https://www.desertcart.com.au/products/457705435-inline-duct-fan-silencer-100mm-noise-reduction-muffler-blower-silencer)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-09*