---
product_id: 324137987
title: "POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings"
brand: "powertec"
price: "A$37"
currency: AUD
in_stock: true
reviews_count: 5
category: "Powertec"
url: https://www.desertcart.com.au/products/324137987-powertec-70108-4-inch-blast-gate-for-dust-collector-dust
store_origin: AU
region: Australia
---

# Optimizes airflow control for dust collection 4-inch nominal diameter for universal fit Premium abrasion-resistant ABS plastic POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings

**Brand:** powertec
**Price:** A$37
**Availability:** ✅ In Stock

## Summary

> 💨 Control the flow, own the clean workspace!

## Quick Answers

- **What is this?** POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings by powertec
- **How much does it cost?** A$37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/324137987-powertec-70108-4-inch-blast-gate-for-dust-collector-dust)

## 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

- • **Lightweight Yet Durable:** Weighing just 159g, it’s easy to handle without compromising on ruggedness or reliability.
- • **Built to Endure Daily Grind:** Crafted from tough ABS plastic, designed to resist wear from sawdust, woodchips, and debris.
- • **Precision Fit for Pro Workshops:** Seamlessly connects with 4” ID dust hoses and ports for a flawless dust collection setup.
- • **Easy Installation & Compatibility:** Fits most 4” dust collection systems; use with a Flex Cuff for 4” OD ports to ensure perfect sealing.
- • **Maximize Dust Collection Efficiency:** Manual gate control directs airflow exactly where you need it, reducing system load and boosting performance.

## Overview

The POWERTEC 70108 4 Inch Blast Gate is a durable, abrasion-resistant ABS plastic accessory designed to regulate airflow in dust collection systems. It fits 4” ID hoses and ports, enhancing dust collection efficiency by directing vacuum flow to specific machines. Lightweight and easy to install, it’s a must-have for professional and home workshops aiming for cleaner, safer environments.

## Description

This manual blast gate helps maximize your dust collection system by regulating proper air flow to your designated machine of choice. Acting as an in-line gate to control the vacuum flow to specified areas of your work shop, it’s designed to work seamlessly with a variety of flexible hoses, ducts, and 4-inch ports for an assortment of popular brands. Compatibility - Both ends have 4” OD outlet diameters and are designed to work with 4” ID dust hoses or other 4” ID ports. Will not connect directly to other 4” OD ports, please confirm that the actual listed size fits your application before ordering. If connecting to a 4” OD port, a POWERTEC 70149 Flex Cuff or similar device will be required. Premium Construction - The blast gate features ABS plastic, along with a thick abrasion resistant profile that’s perfectly suited to take on the abusive nature of sawdust, woodchips and other debris. We’ve manufactured this dust collector accessory with a functional design that you can depend on, and with a quality build that speaks for itself. Universal Fit - Featuring a nominal 4 inch OD diameter, this unit will provide a perfect fit for most professional and at-home workshop dust collection systems. Whether you’re a beginner or seasoned woodworker, it’s extremely easy to use and install.

Review: Product works as designed no issues good product at a fair price
Review: Excelente justo lo que necesito

## Features

- Includes: 4” Blast Gate; Both ends have 4” OD outlet diameters and are designed to work with 4” ID dust hoses or other 4” ID ports
- Specifications: Accepts 4” ID dust hose, port or vacuum fitting; 4" Nominal end measures 3-61/64” O.D. and 3-3/4” I.D
- Compatibility: Will not connect directly to other 4” OD ports; please confirm that the actual listed size fits your application before ordering. If connecting to a 4” OD port, a Flex Cuff or similar device will be required
- Function: Maximizes the efficiency of your dust collection system by directing and regulating the air flow from one machine to another
- Quality: Made with premium black ABS plastic, this unit was designed for durability and is abrasion resistant - able to withstand daily wear & tear from dirt, sawdust and woodchips

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005VRPQ92 |
| ASIN  | B005VRPQ92 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #80,044 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Shop Dust Collectors |
| Color | Black |
| Country of origin  | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,016) |
| Customer reviews | 4.5 4.5 out of 5 stars (3,016) |
| Date First Available | 8 September 2013 |
| Date First Available  | 8 September 2013 |
| Included components | 4-Inch Blast Gate for Vacuum/Dust Collector |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 159 g |
| Item model number | 70108 |
| Item model number  | 70108 |
| Manufacturer | POWERTEC |
| Manufacturer  | POWERTEC |
| Material | Acrylonitrile Butadiene Styrene |
| Number Of Pieces | 1 |
| Part number | 70108 |
| Pattern | Blast Gate |
| Power source type | Hand Powered |
| Product Dimensions | 16.76 x 16.51 x 8.89 cm; 158.76 g |
| Product Dimensions  | 16.76 x 16.51 x 8.89 cm; 158.76 g |
| Size | 4" (1pk) |
| Style | Blast Gate |

## Product Details

- **Brand:** POWERTEC
- **Colour:** Black
- **Item dimensions L x W x H:** 16.8 x 16.5 x 8.9 centimeters
- **Material:** Acrylonitrile Butadiene Styrene
- **Size:** 4" (1pk)

## Images

![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 1](https://m.media-amazon.com/images/I/51+bmZCtbTL.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 2](https://m.media-amazon.com/images/I/51aJPv+Fu5L.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 3](https://m.media-amazon.com/images/I/71-Go1fI9wL.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 4](https://m.media-amazon.com/images/I/7197uOa7vyL.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 5](https://m.media-amazon.com/images/I/71GYKUs30aL.jpg)

## Questions & Answers

**Q: Can anyone tell me the actual  outside diameter of the flange on the 4"**
A: I used 4" schedule 40 PVC and it fit snugly on the 4" blast gate.  I also drilled and screwed two sheet metal screws per blast gate (along with silicon sealer)

**Q: Are they both 4" od, or is one size 4"id for dc machine port?**
A: No,
They are 3 11/16 id and 3 13/16 + 1/32 od.   There is nothing 4" here.

**Q: any suggestions on how to attach this to 4" DWV? The pipe is too large for these.**
A: I didn't hook them up to 4inch. I ran 2 3/4 flex and pvc.  Btw...it clogs up with saw dust. I drilled a hole on side opposite the slide with a forsner bit to blow it out. I cover the hole with duct tape.

**Q: The action on the 4" plastic version is very rough / jerky.
Any successful method of smooting the action?
Grease?**
A: I found it varies from one gate to another.  Applying wax from a candle or similar source, helped but did not fully fix the issue.  I just rubbed it on the flat portion that fits in the groove and worked it back and forth.  I would be afraid that grease would trap dust.  I prefer metal gates.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***. on 24 September 2025*

Product works as designed no issues good product at a fair price

### ⭐⭐⭐⭐⭐ Review
*by M***S on 30 November 2023*

Excelente justo lo que necesito

### ⭐⭐⭐⭐⭐ Review
*by S***T on 11 June 2018*

Perfect fit into my dust collection system. It is a little on the loose side, but when the DC is on, it creates a good seal. When opened, there is a bit of an air leak but this is common with all blast gates having a cleanout path. I may make a foam adapter to see if I can help block the gap when open.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-04*