---
product_id: 377518910
title: "POWERTEC 70322 4 Inch to 2-1/2 Inch Reducer and 4 Inch Dust Control Flex Cuff with Stainless Steel Hose Clamps, Dust Collection Fitting for Woodworking Dust Collection Hose and Dust Ports, 1 Set"
brand: "powertec"
price: "€ 33.01"
currency: EUR
in_stock: true
reviews_count: 13
category: "Powertec"
url: https://www.desertcart.sk/products/377518910-powertec-70322-4-inch-to-2-1-2-inch-reducer
store_origin: SK
region: Slovakia
---

# Airtight flex cuff seal 4" to 2.5" precise reducer fit Durable ABS & rubber build POWERTEC 70322 4 Inch to 2-1/2 Inch Reducer and 4 Inch Dust Control Flex Cuff with Stainless Steel Hose Clamps, Dust Collection Fitting for Woodworking Dust Collection Hose and Dust Ports, 1 Set

**Brand:** powertec
**Price:** € 33.01
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect Clean, Work Smart — Dust Control Made Effortless

## Quick Answers

- **What is this?** POWERTEC 70322 4 Inch to 2-1/2 Inch Reducer and 4 Inch Dust Control Flex Cuff with Stainless Steel Hose Clamps, Dust Collection Fitting for Woodworking Dust Collection Hose and Dust Ports, 1 Set by powertec
- **How much does it cost?** € 33.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/377518910-powertec-70322-4-inch-to-2-1-2-inch-reducer)

## Best For

- powertec enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium ABS plastic and flexible rubber ensure long-term durability under heavy workshop use
- • **Tool-Free Upgrade:** No duct tape or screws needed—quick install and reusable for evolving dust collection needs
- • **Airtight Connection:** Flex cuff with stainless steel clamps guarantees zero dust leaks and mess-free setup
- • **Optimize Your Workspace:** Maintain peak dust extraction efficiency and cleaner air for your professional projects
- • **Seamless Size Transition:** Effortlessly connect 4" OD ports to 2.5" hoses without airflow loss

## Overview

The POWERTEC 70322 kit includes a 4" to 2.5" dust collection hose reducer and a flexible 4" dust cuff with stainless steel clamps, designed to create airtight, durable connections between different sized dust hoses. Made from high-quality ABS plastic and rubber, this set ensures long-lasting performance and optimal dust extraction efficiency for woodworking and shop vac systems.

## Description

Introducing the 4” to 2-1/2” Cone Reducer and 4-Inch Dust Control Flex Cuff with Hose Clamps by POWERTEC. The cone reducer is designed to provide you with a simple solution to coupling your 4-inch ID dust hoses with 2-1/2 ID dust hoses. Specifically, it allows you to step down from a larger main line to a smaller branch line without compromising air velocity or the effectiveness of your dust collection system.The flex cuff is designed to provide you with an airtight connection between a pair of 4” dust collection fittings or hoses. And it comes equipped with standard hose clamps so that you won’t need unattractive duct tape or a messy assortment of screws. It’s a highly useful (and reusable) dust collection system accessory, as it allows you to interchange fittings and connect adapters to keep all of your dust collection tools connected. ConstructionReducer - It's made with heavy walled ABS plastic construction made for durability and to withstand the wear & tear commonly associated with woodworking dust collection. Flex Cuff - It’s made with high quality rubber to ensure long-term durability and possesses a flexible profile capable of conforming to the narrow range of sized ports.“Make a clean and smart connection today with the POWERTEC.” POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.

Review: Well made and fills a need. Support your local maker. - Well made for a basement 3D printed item. Works fine. Fair price. Filled a need perfectly, and I appreciate the ability to support other makers. Need: I do amateur digital electronics and solder at a bench in a home office a lot. I built a custom exhaust fan / vent setup using a home "grow" fan and shop vac 2.5" ducting. The fan and exhaust are 4". I exhaust everything out the window through a dryer fitting and baffle. The 2.5 ducting gives me velocity and 4" gives me the volume. It works well under my microscope / soldering stage.
Review: This was not a perfect choice, but it did the job well. - I would rather the 4 inch side was slightly larger, rather than the same size as the pipe, so that it would simply fit over the pipe to just be banded down, but the flex cuff accomplished that task. I was just happy to find a product that accomplished what I needed, which was to vent toxic fumes from a 3-D printer to the outside through a dryer vent.

## Features

- INCLUDES: (1) 4” to 2 1/2” Dust Collection Hose Reducer & (1) Flexible Hose Cuff Coupler with (2) Dust Hose Clamps
- FUNCTION: The kit allows you to connect your 4” OD (outside diameter) port or dust collection line to a 2-1/4” OD shop vac hose connector, port, or adapter. The flex cuff provides a perfectly sealed, airtight connection between your 4” OD port and the 4” OD of the reducer. The 2-1/4” OD shop vac components fit inside the smaller end of the reducer. The OD of the smaller end of the reducer can also be used to connect to a 2-1/2” ID (Inside diameter) flexible hose.
- PREMIUM BUILD: Reducer made with high quality ABS plastic for long-term durability and to withstand the abrasive nature of workshop dust collection. Flex cuffs are made with a durable rubber construction to withstand long-term wear and tear, and possess a flexible design that seamlessly conforms to slight diameter differences in fittings.
- REDUCER's DIMENSIONS: 4” nominal OD end measures 3-61/64” OD and 3-41/64” ID; 2-1/2” nominal OD end measures 2-15/32” OD and 2-9/32” ID.
- FLEX CUFF's DIMENSIONS: 4” nominal OD end measures 4-9/16” OD, 4” ID and 2-9/16" Length

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09BFDWMRL |
| Batteries Required? | No |
| Best Sellers Rank | #8,144 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Vacuum & Dust Collector Replacement Parts #3 in Power Tool Replacement Parts |
| Brand | POWERTEC |
| Color | 4" to 2-1/2" Reducer & 4" Cuff, 1 Set |
| Connector Type | Reducer, Flex Cuff |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,650) |
| Date First Available | July 29, 2021 |
| Included Components | INCLUDES: (1) 4” to 2 1/2” Dust Collection Hose Reducer & (1) Flexible Hose Cuff Coupler with (2) Dust Hose Clamps |
| Item Package Quantity | 1 |
| Item Weight | 10.6 ounces |
| Item dimensions L x W x H | 6 x 5 x 4 inches |
| Item model number | 70322 |
| Manufacturer | POWERTEC |
| Material | Acrylonitrile Butadiene Styrene, Rubber |
| Number of Pieces | 2 |
| Part Number | 70322 |
| Product Dimensions | 6 x 5 x 4 inches |
| Set Name | 1 Set |
| Size | 4" to 2-1/2" Reducer & 4" Cuff, 1 Set |
| Style | 4" to 2-1/2" Reducer & 4" Cuff, 1 Set |
| UPC | 843441111351 |

## Product Details

- **Brand:** POWERTEC
- **Color:** 4" to 2-1/2" Reducer & 4" Cuff, 1 Set
- **Connector Type:** Reducer, Flex Cuff
- **Item Weight:** 0.66 Pounds
- **Item dimensions L x W x H:** 6 x 5 x 4 inches
- **Manufacturer:** POWERTEC
- **Material:** Acrylonitrile Butadiene Styrene, Rubber
- **Number of Pieces:** 2
- **Set Name:** 1 Set
- **Size:** 4" to 2-1/2" Reducer & 4" Cuff, 1 Set

## Images

![POWERTEC 70322 4 Inch to 2-1/2 Inch Reducer and 4 Inch Dust Control Flex Cuff with Stainless Steel Hose Clamps, Dust Collection Fitting for Woodworking Dust Collection Hose and Dust Ports, 1 Set - Image 1](https://m.media-amazon.com/images/I/51zF-VVJ78L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made and fills a need. Support your local maker.
*by A***R on August 15, 2025*

Well made for a basement 3D printed item. Works fine. Fair price. Filled a need perfectly, and I appreciate the ability to support other makers. Need: I do amateur digital electronics and solder at a bench in a home office a lot. I built a custom exhaust fan / vent setup using a home "grow" fan and shop vac 2.5" ducting. The fan and exhaust are 4". I exhaust everything out the window through a dryer fitting and baffle. The 2.5 ducting gives me velocity and 4" gives me the volume. It works well under my microscope / soldering stage.

### ⭐⭐⭐⭐⭐ This was not a perfect choice, but it did the job well.
*by D***M on January 8, 2026*

I would rather the 4 inch side was slightly larger, rather than the same size as the pipe, so that it would simply fit over the pipe to just be banded down, but the flex cuff accomplished that task. I was just happy to find a product that accomplished what I needed, which was to vent toxic fumes from a 3-D printer to the outside through a dryer vent.

### ⭐⭐⭐⭐⭐ Quality material
*by V***C on January 9, 2026*

Just purchased but pleasantly surprised at the great quality of this blast gate. It appears well made and should hold up a lot better than my previous plastic one. Gates a little stiff but should loosen up with use. Would buy again.

## Frequently Bought Together

- POWERTEC 70322 4" to 2-1/2" Dust Control Flex Hose Clamps, Black, Reducer + Cuff (4")
- POWERTEC 70276 4-Inch to 2-1/2-Inch Dust Collection Splitter Fitting
- FastCap Glu-Bot Glue Bottle (16 Ounces)

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**Shop now:** [https://www.desertcart.sk/products/377518910-powertec-70322-4-inch-to-2-1-2-inch-reducer](https://www.desertcart.sk/products/377518910-powertec-70322-4-inch-to-2-1-2-inch-reducer)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-24*