---
product_id: 140104681
title: "70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings"
brand: "powertec"
price: "$78.64"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/140104681-70108-4-inch-blast-gate-for-dust-collector-dust-collection
store_origin: EC
region: Ecuador
---

# Optimizes airflow control 4-inch nominal size precision fit Durable premium ABS plastic 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings

**Brand:** powertec
**Price:** $78.64
**Availability:** ✅ In Stock

## Summary

> 💨 Take control of your dust—because clean workspaces mean clear minds!

## Quick Answers

- **What is this?** 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings by powertec
- **How much does it cost?** $78.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/140104681-70108-4-inch-blast-gate-for-dust-collector-dust-collection)

## 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

- • **Airflow Mastery:** Effortlessly directs and regulates dust collection airflow to boost system efficiency
- • **Precision 4-Inch Fit:** Seamlessly connects with 4” ID dust hoses for maximum compatibility
- • **Compact & Lightweight:** Weighs just 159g with a sleek design that fits tight spaces without bulk
- • **Versatile Compatibility:** Works with 4” ID ports; easily adapts with Flex Cuff for 4” OD connections
- • **Durable ABS Construction:** Built to resist abrasion, dirt, and sawdust for long-lasting performance

## Overview

The POWERTEC 70108 4-Inch Blast Gate is a precision-engineered dust collection fitting made from premium black ABS plastic. Designed to fit 4” ID dust hoses and ports, it maximizes airflow control and system efficiency while resisting daily wear from sawdust and debris. Lightweight and compact, it’s an essential upgrade for any professional dust collection setup.

## Description

70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings

## 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 |
|---------------|-------|
| Manufacturer | POWERTEC |
| Part Number | 70108 |
| Product Dimensions | 16.76 x 16.51 x 8.89 cm; 158.76 g |
| Item model number | 70108 |
| Size | 4" (1pk) |
| Colour | Black |
| Style | Blast Gate |
| Material | Acrylonitrile Butadiene Styrene |
| Pattern | Blast Gate |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Included Components | 4-Inch Blast Gate for Vacuum/Dust Collector |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 159 g |

## Product Details

- **Size:** 4" (1pk)
- **Material:** Acrylonitrile Butadiene Styrene
- **Brand:** POWERTEC
- **Colour:** Black
- **Item dimensions L x W x H:** 16.8 x 16.5 x 8.9 centimetres
- **Item weight:** 159 g
- **Global Trade Identification Number:** 00736815003416
- **Manufacturer:** POWERTEC
- **UPC:** 074994519060 736815003416

## Images

![70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings - Image 1](https://m.media-amazon.com/images/I/51+bmZCtbTL.jpg)

## Available Options

This product comes in different **Size, 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.

## Frequently Bought Together

- POWERTEC 70108 4 Inch Blast Gate for Dust Collector, Dust Collection Fittings
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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-26*