---
product_id: 140104681
title: "POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings"
brand: "powertec"
price: "$53.23"
currency: USD
in_stock: true
reviews_count: 13
category: "Powertec"
url: https://www.desertcart.us/products/140104681-powertec-70108-4-inch-blast-gate-for-dust-collector-dust
store_origin: US
region: United States of America
---

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

**Brand:** powertec
**Price:** $53.23
**Availability:** ✅ In Stock

## Summary

> 💨 Take control of your dust collection like a pro—because clean air means clear focus!

## Quick Answers

- **What is this?** POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings by powertec
- **How much does it cost?** $53.23 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/140104681-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

- • **Smooth Operation:** Glides easily with a secure locking mechanism for reliable multi-gate setups.
- • **Precision 4-Inch Fit:** Seamlessly connects with 4” ID dust hoses and ports for universal compatibility.
- • **Compact & Lightweight:** Weighs just 159g with a slim profile, perfect for professional and home workshops.
- • **Rugged ABS Construction:** Built to withstand daily wear from sawdust, woodchips, and debris without cracking.
- • **Effortless Airflow Control:** Manual sliding gate lets you direct vacuum power exactly where you need it.

## Overview

The POWERTEC 70108 4 Inch Blast Gate is a premium ABS plastic dust collection accessory designed to regulate airflow in workshop dust systems. Featuring a 4-inch nominal diameter, it fits most 4” ID hoses and ports, enhancing system efficiency by directing vacuum power where needed. Its abrasion-resistant build ensures durability against sawdust and debris, while the smooth sliding gate with locking mechanism offers precise control. Lightweight and compact, it’s ideal for both professional and DIY woodworkers aiming to maintain a cleaner, safer workspace.

## 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: Fantastic quality gate. - Well made. So pleased with these. Far better than plastic alternatives, especially if you have a multi-gate setup that you change often. Lovely cast body, smooth with no sharp edges. Moveable gate easily locked - make sure installed the right way. Small gap on one side once closed. Not the end of the world, but hey, might as well get the best out of them. The gate is thin and bends if knocked. Straightens easily, but would recommend installing out of the way of feet or equipment pathways. I've bought a few of these now, and will surely buy more as my dust collection requirements increase. Bottom line - super. highly recommended. David
Review: Good product - I installed 2 of these blast gate onto my new 6" fume exhaust system and they work very well. The sliding gate works smoothly

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 193,049 in DIY & Tools ( See Top 100 in DIY & Tools ) 196 in Dust Collectors & Air Cleaners |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,697) |
| Date First Available | 14 Oct. 2011 |
| Included Components | 4-Inch Blast Gate for Vacuum/Dust Collector |
| Item Package Quantity | 1 |
| Item Weight | 159 g |
| Item model number | 70108 |
| Manufacturer | POWERTEC |
| Material | Acrylonitrile Butadiene Styrene |
| Number of Pieces | 1 |
| Part Number | 70108 |
| Pattern | Blast Gate |
| Power Source | Hand Powered |
| 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
- **Connector type:** Slip
- **Global Trade Identification Number:** 00736815003416
- **Item dimensions L x W x H:** 16.8 x 16.5 x 8.9 centimetres
- **Item weight:** 159 g
- **Manufacturer:** POWERTEC
- **Material:** Acrylonitrile Butadiene Styrene
- **Number of pieces:** 1
- **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/310Ly3SCbfL.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 2](https://m.media-amazon.com/images/I/31p-ltMLIuL.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 3](https://m.media-amazon.com/images/I/41dDevyXj-L.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 4](https://m.media-amazon.com/images/I/41tAxMZ-2ML.jpg)
![POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 5](https://m.media-amazon.com/images/I/41tmBV1dJ7L.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Fantastic quality gate.
*by M***S on 25 November 2022*

Well made. So pleased with these. Far better than plastic alternatives, especially if you have a multi-gate setup that you change often. Lovely cast body, smooth with no sharp edges. Moveable gate easily locked - make sure installed the right way. Small gap on one side once closed. Not the end of the world, but hey, might as well get the best out of them. The gate is thin and bends if knocked. Straightens easily, but would recommend installing out of the way of feet or equipment pathways. I've bought a few of these now, and will surely buy more as my dust collection requirements increase. Bottom line - super. highly recommended. David

### ⭐⭐⭐⭐⭐ Good product
*by I***B on 14 November 2024*

I installed 2 of these blast gate onto my new 6" fume exhaust system and they work very well. The sliding gate works smoothly

### ⭐⭐⭐⭐ Does the job
*by M***. on 1 December 2023*

Quite solidly made but the middle part that slides is easily bent out of shape and then causes stiffness when opening or closing.

## Frequently Bought Together

- POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*