---
product_id: 18731898
title: "POWERTEC 70145 4-Inch to 3-Inch Reducer"
brand: "powertec"
price: "205 DH"
currency: MAD
in_stock: true
url: https://www.desertcart.ma/products/18731898-powertec-70145-4-inch-to-3-inch-reducer
store_origin: MA
region: Morocco
---

# Boosts air velocity at dust source 4-inch to 3-inch precision fit Heavy-duty ABS plastic durability POWERTEC 70145 4-Inch to 3-Inch Reducer

**Brand:** powertec
**Price:** 205 DH
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence — Upgrade Your Dust Collection Game!

## Quick Answers

- **What is this?** POWERTEC 70145 4-Inch to 3-Inch Reducer by powertec
- **How much does it cost?** 205 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/18731898-powertec-70145-4-inch-to-3-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:** Crafted from premium ABS plastic to resist abrasion, rust, and corrosion in tough workshop environments.
- • **Optimized Airflow:** Tapered port design increases air velocity exactly where your dust collection needs it most.
- • **Compact & Lightweight:** Just 3.21 ounces and under 4.2 inches—easy to install without adding bulk or weight.
- • **Universal Compatibility:** Fits standard 4-inch OD hoses and most 3-inch dust collection lines for versatile workshop setups.
- • **Seamless Size Transition:** Effortlessly connect 4-inch hoses to 3-inch ducts without leaks or fuss.

## Overview

The POWERTEC 70145 reducer is a precision-engineered dust collection adapter that transitions 4-inch hoses to 3-inch ducts. Made from rugged ABS plastic, it ensures long-lasting durability against abrasive workshop dust and clamp pressure. Its tapered port boosts airflow velocity near your tools, optimizing dust extraction efficiency. Lightweight and compact, it fits standard hose sizes for seamless integration into any dust collection system.

## Description

POWERTEC 70145 4-Inch to 3-Inch Reducer

## Features

- INCLUDES: 4 inch to 3 inch dust collection reducer (1pc)
- FUNCTION: This dust collector attachment possesses a 4-inch OD end that connects to standard 4-inch ID dust collection hose and allows you to step down to a 3 inch dust collection hose or line branch. Note: to connect to other 4” OD ports or adapters, a 4”flex cuff, POWERTEC 70149, will be needed.
- EASY TO USE: Offers a 4” OD profile with tapered port on one side, fits inside most 3" dust collection hose
- PREMIUM QUALITY: Made with heavy duty ABS plastic material for long-term durability and made to withstand the abrasive nature of woodworking and workshop dust collection
- DIMENSIONS: 4-Inch o.d nominal end | 3-Inch o.d nominal end
- Connect 3-Inch opening duct to 4-Inch flexible hose
- Transition 3-Inch duct to 4-Inch standard hose
- Tough, durable ABS plastic material
- 4-Inch nominal end measures 3-15/16-Inch O.D. and 3-45/56-Inch I.D.
- 3-Inch nominal end measures 2-63/64-Inch O.D. and 2-23/32-Inch I.D.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 1 Count (Pack of 1) |
| Material | ABS plastic |
| Brand | POWERTEC |
| Color | Black |
| Item dimensions L x W x H | 4.14 x 4.14 x 3.44 inches |
| Connector Type | Reducer |
| Thread Size | 3 inches |
| Exterior Finish | ABS |
| Item Weight | 91 Grams |
| Number of Pieces | 1 |
| Global Trade Identification Number | 00736815005960 |
| Manufacturer | Southern Technology LLC |
| UPC | 736815005960 |
| Part Number | 70145 |
| Item Weight | 3.21 ounces |
| Product Dimensions | 4.14 x 4.14 x 3.44 inches |
| Item model number | 70145 |
| Is Discontinued By Manufacturer | No |
| Style | 4" to 3" Reducer (1pk) |
| Item Package Quantity | 1 |
| Included Components | 4-Inch to 3-Inch Reducer |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 1 Count (Pack of 1)
- **Material:** ABS plastic
- **Brand:** POWERTEC
- **Color:** Black
- **Item dimensions L x W x H:** 4.14 x 4.14 x 3.44 inches
- **Connector Type:** Reducer
- **Thread Size:** 3 inches
- **Exterior Finish:** ABS
- **Item Weight:** 91 Grams
- **Number of Pieces:** 1

## Images

![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 1](https://m.media-amazon.com/images/I/51bbjT1EtkS.jpg)
![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 2](https://m.media-amazon.com/images/I/41zEYb3yAqS.jpg)
![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 3](https://m.media-amazon.com/images/I/41iXZ-YmcjS.jpg)
![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 4](https://m.media-amazon.com/images/I/61hnLXivRMS.jpg)
![POWERTEC 70145 4-Inch to 3-Inch Reducer - Image 5](https://m.media-amazon.com/images/I/61gYZ7L-3CS.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the ID of the 3inch side?**
A: I bought this for my grizzly shaper with a 3" dust port. the 3" end is the same OD as the shaper. What I had to buy was a 3" x 6" piece of dust collector hose. I think Rockler sells it. Good luck.

**Q: I need a 2.75 Outer diameter to 4”.. will this fitting work?**
A: Read the specs carefully.  It is designed to  connect 4" to 3" dia hose.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.ma/products/18731898-powertec-70145-4-inch-to-3-inch-reducer](https://www.desertcart.ma/products/18731898-powertec-70145-4-inch-to-3-inch-reducer)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-17*