---
product_id: 489005414
title: "AC Infinity Noise Reduction Clamp 100mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 4-Inch"
brand: "ac infinity"
price: "€ 49.49"
currency: EUR
in_stock: true
reviews_count: 10
category: "Ac Infinity"
url: https://www.desertcart.hr/products/489005414-ac-infinity-noise-reduction-clamp-100mm-duct-coupler-with-stainless
store_origin: HR
region: Croatia
---

# Noise reduction up to 30%+ Adjustable stainless steel clamps Airtight, leak-proof seal AC Infinity Noise Reduction Clamp 100mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 4-Inch

**Brand:** ac infinity
**Price:** € 49.49
**Availability:** ✅ In Stock

## Summary

> 🔇 Seal the noise, not your airflow — upgrade to silent efficiency!

## Quick Answers

- **What is this?** AC Infinity Noise Reduction Clamp 100mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 4-Inch by ac infinity
- **How much does it cost?** € 49.49 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/489005414-ac-infinity-noise-reduction-clamp-100mm-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

- • **Built to Last:** Heavy-duty rubber paired with corrosion-resistant stainless steel clamps guarantees durability and secure hold.
- • **Silence Meets Strength:** Rubber coupling absorbs fan vibrations and airflow noise for a whisper-quiet environment.
- • **Effortless Installation:** Worm drive locks on clamps allow quick, tool-free adjustments for hassle-free setup.
- • **Versatile HVAC Essential:** Ideal for inline fans and carbon filters in both professional growing and HVAC systems—upgrade your airflow game.
- • **Precision Fit, Zero Leaks:** Flexible matte black rubber molds perfectly over 4-inch duct ports, ensuring an airtight connection.

## Overview

The AC Infinity 4-inch Noise Reduction Coupler combines flexible, heavy-duty rubber with adjustable stainless steel clamps to create an airtight, vibration-absorbing seal for ducted components. Designed for inline fans and carbon filters, it minimizes noise and prevents air leaks, making it a must-have for professional HVAC and growing setups.

## Description

Free delivery and returns on all eligible orders. Shop AC Infinity Noise Reduction Clamp 100mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 4-Inch.

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.
Review: Good - Sealed the vent, plenty of screws and bands

## 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.
- 4 inch coupler fits inline fans and carbon filters with solid duct ports in growing and HVAC settings.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B6JPT3BB |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 87,641 in DIY & Tools ( See Top 100 in DIY & Tools ) 247 in Ducting |
| Customer Reviews | 4.8 4.8 out of 5 stars (896) |
| Date First Available | 24 July 2022 |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Manufacturer | AC Infinity |
| Package Dimensions | 21.01 x 14.71 x 7.11 cm; 200 g |
| Size | 4 inch |

## Images

![AC Infinity Noise Reduction Clamp 100mm, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC, 4-Inch - Image 1](https://m.media-amazon.com/images/I/51V8l10uctL.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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Good
*by D***E on 10 November 2025*

Sealed the vent, plenty of screws and bands

### ⭐⭐⭐⭐⭐ 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 4-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Air Carbon Filter 4" with Premium Australian Virgin Charcoal, for Inline Duct Fan, Odor Control, Hydroponics, Grow Rooms

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**Shop now:** [https://www.desertcart.hr/products/489005414-ac-infinity-noise-reduction-clamp-100mm-duct-coupler-with-stainless](https://www.desertcart.hr/products/489005414-ac-infinity-noise-reduction-clamp-100mm-duct-coupler-with-stainless)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-08*