---
product_id: 619247324
title: "Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End)"
brand: "therwen"
price: "€ 66.40"
currency: EUR
in_stock: true
reviews_count: 8
category: "Therwen"
url: https://www.desertcart.fi/products/619247324-therwen-4-sets-3-4-inch-chicago-air-fittings-npt
store_origin: FI
region: Finland
---

# 3/4'' NPT Thread Size Galvanized Carbon Steel Durability 150 PSI Max Pressure Grade Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End)

**Brand:** therwen
**Price:** € 66.40
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in Performance, Unlock Productivity!

## Quick Answers

- **What is this?** Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) by therwen
- **How much does it cost?** € 66.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/619247324-therwen-4-sets-3-4-inch-chicago-air-fittings-npt)

## Best For

- therwen enthusiasts

## Why This Product

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

## Key Features

- • **Built to Withstand 150 PSI:** Optimized pressure rating ensures long-lasting performance under demanding conditions.
- • **Reliable 3/4'' NPT Threading:** Precision-engineered for seamless, leak-proof connections every time.
- • **Safety-First Locking Mechanism:** Includes silver safety locks for secure, worry-free coupling and uncoupling.
- • **Galvanized Carbon Steel Strength:** Rustproof finish guarantees durability and longevity in tough environments.
- • **Versatile Industrial Compatibility:** Perfect for pneumatic tools, compressors, automotive, and mechanical engineering needs.

## Overview

Therwen’s 4-piece set of 3/4'' NPT Chicago air fittings combines galvanized carbon steel durability with a 150 PSI pressure rating and secure safety locks, delivering reliable, rust-resistant connections ideal for professional pneumatic and automotive applications.

## Description

Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - desertcart.com

Review: Great Product, Value - Works great with my Ingersol Rand tow behind compressor
Review: Good Quality - The material is very good quality. The holes for the safety clips are drilled and have sharp metal that was not filed off after drilling. Other than that they work great.

## Features

- What You Will Receive: you will receive 4 x 3/4'' NPT Chicago fittings, 4 x silver safety locks and 4 x rubber washers, the quantity is enough for you to use, can meet your daily life needs
- Pressure Grade: the recommended maximum working pressure is under 150 psi to prolong its service life
- Rustproof and Durable Material: the universal 3/4 air hose is made of carbon steel, and the surface is galvanized, to prolong the service time
- Instructions for Use: each connector is equipped with a safety lock, which is applied to insert into the locking hole on the fitting to ensure that the air hose repair end is connected correctly
- Widely Application: the universal air fitting can be applied to many occasions, such as pneumatic equipment, automobile industry, air compressors and mechanical engineering

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJ91CCCT |
| Batteries Required? | No |
| Best Sellers Rank | #64,143 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #69 in Air Tool Fittings |
| Brand | Therwen |
| Color | Silver |
| Connector Type | Coupling |
| Customer Reviews | 4.6 4.6 out of 5 stars (57) |
| Date First Available | September 18, 2023 |
| Exterior Finish | Silver |
| Item Package Quantity | 4 |
| Item Weight | 2.27 pounds |
| Item model number | GFA-Therwen-1666 |
| Manufacturer | Therwen |
| Material | Carbon Steel |
| Number of Pieces | 4 |
| Package Dimensions | 6.02 x 5.67 x 1.81 inches |
| Part Number | GFA-Therwen-1666 |
| Set Name | Set of 4 |
| Size | 3/4'' |
| Style | Male End |
| Thread Size | 3/4'' NPT |
| Thread Type | NPT |

## Product Details

- **Brand:** Therwen
- **Color:** Silver
- **Connector Type:** Coupling
- **Exterior Finish:** Silver
- **Item Weight:** 1.03 Kilograms
- **Material:** Carbon Steel
- **Number of Pieces:** 4
- **Size:** 3/4''
- **Thread Size:** 3/4'' NPT
- **Thread Type:** NPT

## Images

![Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - Image 1](https://m.media-amazon.com/images/I/41-8o04I+oL.jpg)
![Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - Image 2](https://m.media-amazon.com/images/I/419FGaN4KrL.jpg)
![Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - Image 3](https://m.media-amazon.com/images/I/41C6MSVxiAL.jpg)
![Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - Image 4](https://m.media-amazon.com/images/I/41JWZrQYoNL.jpg)
![Therwen 4 Sets 3/4 Inch Chicago Air Fittings Npt Iron Air Hose Fitting 2 Lug Universal Coupling for Female and Male End(Male End) - Image 5](https://m.media-amazon.com/images/I/41atfeSqvAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product, Value
*by B***Y on October 21, 2025*

Works great with my Ingersol Rand tow behind compressor

### ⭐⭐⭐⭐⭐ Good Quality
*by A***R on October 15, 2024*

The material is very good quality. The holes for the safety clips are drilled and have sharp metal that was not filed off after drilling. Other than that they work great.

### ⭐⭐⭐⭐ Gasket dimensions?
*by T***S on March 1, 2025*

Love the price but the fittings wouldn't push together close enough to twist into a locked position. I tried hard. I had to grind down the gaskets and then they connected well. Not a fan of rubber dust though.

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**Shop now:** [https://www.desertcart.fi/products/619247324-therwen-4-sets-3-4-inch-chicago-air-fittings-npt](https://www.desertcart.fi/products/619247324-therwen-4-sets-3-4-inch-chicago-air-fittings-npt)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-07*