---
product_id: 457703749
title: "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"
brand: "ac infinity"
price: "$42.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.us/products/457703749-ac-infinity-noise-reduction-clamp-4-inch-duct-coupler-stainless
store_origin: US
region: United States of America
---

# Noise-absorbing sound wave reduction Adjustable stainless steel worm-drive clamps 4-inch flexible rubber coupling 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

**Brand:** ac infinity
**Price:** $42.21
**Availability:** ✅ In Stock

## Summary

> 🔇 Lock in silence, unlock peak performance.

## Quick Answers

- **What is this?** 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 by ac infinity
- **How much does it cost?** $42.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/457703749-ac-infinity-noise-reduction-clamp-4-inch-duct-coupler-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

- • **Airtight Security:** Stainless steel clamps with worm-drive locks ensure zero air leaks.
- • **Seamless 4-Inch Fit:** Perfectly pairs inline fans and carbon filters for HVAC and grow rooms.
- • **Silent Operation Boost:** Minimizes fan vibration noise for a quieter environment.
- • **Effortless Installation:** Flexible design slips over duct ports easily, no airflow obstruction.
- • **Industrial-Grade Durability:** Heavy-duty nitrile rubber resists wear while maintaining flexibility.

## Overview

The AC Infinity Noise Reduction Coupler is a 4-inch flexible nitrile rubber duct connector designed for HVAC and grow room setups. Featuring adjustable stainless steel worm-drive clamps, it creates an airtight seal that prevents air leaks while absorbing fan vibration noise. Its durable matte black construction ensures long-lasting performance without obstructing airflow, making it a top choice for professionals seeking quiet, efficient ventilation.

## Description

AC Infinity is a technology company that specializes in environmental controls for audio/video and HVAC. The company was founded on the principle of working closely with customers to develop great products. Dependable service and a commitment to product quality are the foundations of the business's values. AIRTAP Series Visit the Store AIRTAP Series Visit the Store AIRTITAN Series Visit the Store AIRTITAN Series AIRLIFT Series Visit the Store AIRLIFT Series AIRBLAZE Series Visit the Store AIRBLAZE Series

Review: great clamp for grow room exhaust - Not sure on the noise reduction portion but its a solid clamp and works well connecting my exhaust fan and the charcoal filter. been sitting solid for a few months now and unless the fan is running at 80% or higher you don't hear anything in the room or while walking past it. It doesn't obstruct the airflow and I feel like its pretty durable and will outlast my filter.
Review: Solid product that helps with noise cancellation. - Another good quality product from AC infinity. I used this to connect my inline fan to the filter and silencer and outlet.

## 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 |
| Best Sellers Rank | #9,295 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in HVAC Ducting |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Color | Matte Black |
| Customer Reviews | 4.7 out of 5 stars 985 Reviews |
| Manufacturer | AC Infinity |
| Material | Nitrile Rubber |
| Material Type | Nitrile Rubber |
| Number of Packs | 1 |
| Style | Industrial |
| Style Name | Industrial |
| UPC | 819137023529 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** AC Infinity
- **Color:** Matte Black
- **Manufacturer:** AC Infinity
- **Material:** Nitrile Rubber
- **Style:** Industrial
- **UPC:** 819137023529

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51V8l10uctL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71fzSZUHiKL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/61j3MafabLL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/61KjIA7mtfL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61fOn5nHDhL.jpg)

## 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

### ⭐⭐⭐⭐⭐ great clamp for grow room exhaust
*by W***L on December 30, 2025*

Not sure on the noise reduction portion but its a solid clamp and works well connecting my exhaust fan and the charcoal filter. been sitting solid for a few months now and unless the fan is running at 80% or higher you don't hear anything in the room or while walking past it. It doesn't obstruct the airflow and I feel like its pretty durable and will outlast my filter.

### ⭐⭐⭐⭐⭐ Solid product that helps with noise cancellation.
*by S***B on February 24, 2026*

Another good quality product from AC infinity. I used this to connect my inline fan to the filter and silencer and outlet.

### ⭐⭐⭐⭐⭐ Worth every penny!
*by J***. on February 3, 2026*

A MUST have to connect filter and fan!! Never again will I use duct tape!!! Took forever to get the already sealed tape off my filter/fan. Clamp was easy to install & fits like a glove. And it definitely reduces noise! It's not going to silence the fan; But I can definitely tell a "significant" difference! Can turn the fan up higher before hearing it as much, and even then it's still quieter than before.

## 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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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-14*