---
product_id: 139511446
title: "12 Inch Duct Clamps for 12\" HVAC Air Ducting, Hoses, Fans - (4 Pack) Stainless Steel Clamps by Happy Hydro"
brand: "happy hydro"
price: "5127 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/139511446-12-inch-duct-clamps-for-12-hvac-air-ducting-hoses
store_origin: IS
region: Iceland
---

# 4-piece set Easy installation Stainless steel 12 Inch Duct Clamps for 12" HVAC Air Ducting, Hoses, Fans - (4 Pack) Stainless Steel Clamps by Happy Hydro

**Brand:** happy hydro
**Price:** 5127 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Clamp Down on Quality—Your Ducting Deserves the Best!

## Quick Answers

- **What is this?** 12 Inch Duct Clamps for 12" HVAC Air Ducting, Hoses, Fans - (4 Pack) Stainless Steel Clamps by Happy Hydro by happy hydro
- **How much does it cost?** 5127 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/139511446-12-inch-duct-clamps-for-12-hvac-air-ducting-hoses)

## Best For

- happy hydro enthusiasts

## Why This Product

- Trusted happy hydro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quick & Easy Setup:** Install in minutes with just a screwdriver—no hassle!
- • **Connect with Confidence:** Securely fasten your ducting with our durable clamps.
- • **Satisfaction Guaranteed:** 30-day money-back promise for your peace of mind.
- • **Versatile Compatibility:** Fits a range of sizes from 4" to 14" for all your HVAC needs.
- • **Rust-Resistant Reliability:** Stainless steel construction ensures long-lasting performance.

## Overview

The Happy Hydro 12 Inch Duct Clamps come in a 4-pack, designed for easy and secure connections in HVAC systems. Made from rust-resistant stainless steel, these clamps fit a variety of duct sizes and are simple to install with minimal tools. Enjoy a 30-day money-back guarantee for complete satisfaction.

## Description

12 Inch Duct Clamps for 12" HVAC Air Ducting, Hoses, Fans - (4 Pack) Stainless Steel Clamps by Happy Hydro

## Features

- 4 PIECE SET of worm gear duct clamps let you connect flex duct to a carbon filter, fan and hood for a complete grow room loop. Also suitable for bathroom or greenhouse exhausting applications.
- DELUXE KIT with 4 clamps covers all your ducting connections for 1 filter / fan / hood loop. We have clamp sizes to fit 4", 6”, 8”, 10”, 12" or 14" fans and flex duct, as well as gas or fluid hose lines.
- STAINLESS STEEL construction is rust resistant for long-lasting durability. Make clean, professional duct connections to connectors, Y’s, and reducers quickly and easily with Happy Hydro 4-Pack Duct Clamps.
- EASY INSTALLATION requires only a flathead screwdriver or nut driver. Housing locks directly into the band for spot weld-free fastening. Creates strong clamp force that will not shake or vibrate loose.
- 30 DAY MONEY BACK GUARANTEE ensures your satisfaction. If you’re not delighted with the quality and ease of our Ducting Clamps 4-Pack, return it for a 100% refund of your purchase price.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Happy Hydro |
| Part Number | CLMP |
| Item Weight | 8.4 ounces |
| Package Dimensions | 14.57 x 13.39 x 1.1 inches |
| Item model number | CLMP |
| Is Discontinued By Manufacturer | No |
| Size | 12 Inch |
| Style | Modern |
| Material | Stainless Steel |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![12 Inch Duct Clamps for 12" HVAC Air Ducting, Hoses, Fans - (4 Pack) Stainless Steel Clamps by Happy Hydro - Image 1](https://m.media-amazon.com/images/I/51yvV907bsL.jpg)

## Available Options

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

## Questions & Answers

**Q: Need 5 inch clamps, will the 6" clamps adjust down to 5" ? Your 10" clamps are great, they work on 9", 8" and smaller, plenty of adjustment.**
A: I don't think the 6 inch will adjust down that far.  They will go to a larger diameter but not much smaller.  You might try the 4 inch because they will expand out over 1 inch.

**Q: what is the range of the 8' duct clamp? to clamp an 8 ' duct you need to be able to open clamp to 8 1/2 to get it on the hose**
A: Yes the clamp is big enough in diameter to slip over a 8" duct.

**Q: Is this 8 inch in diameter or length?**
A: Diameter be aware that there are 8 inch max max

**Q: Will this fit over 10-inch insulated flexible hvac duct? inside diameter is 10-inches. outside diameter is larger until insulation is compressed.**
A: Yes, you can loosen these to fit around insulated ducting that is a little bigger than 10 inches.

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**Shop now:** [https://www.desertcart.is/products/139511446-12-inch-duct-clamps-for-12-hvac-air-ducting-hoses](https://www.desertcart.is/products/139511446-12-inch-duct-clamps-for-12-hvac-air-ducting-hoses)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-02*