---
product_id: 619247324
title: "Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting"
brand: "therwen"
price: "¥12360"
currency: JPY
in_stock: true
reviews_count: 6
category: "Therwen"
url: https://www.desertcart.jp/products/619247324-therwen-4-pcs-3-4-chicago-air-fittings-npt-iron
store_origin: JP
region: Japan
---

# Safety Lock Included 3/4'' NPT Thread Size Galvanized Carbon Steel Rustproof Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting

**Brand:** therwen
**Price:** ¥12360
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in reliability, unlock your workflow!

## Quick Answers

- **What is this?** Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting by therwen
- **How much does it cost?** ¥12360 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/619247324-therwen-4-pcs-3-4-chicago-air-fittings-npt-iron)

## 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

- • **Complete 4-Piece Set:** Includes fittings, safety locks, and rubber washers—ready for immediate installation.
- • **Secure Safety Lock System:** Prevents accidental disconnections for worry-free operation.
- • **Universal 3/4'' NPT Thread:** Seamlessly fits both male and female air hose ends for versatile use.
- • **150 PSI Max Pressure Rating:** Engineered to handle demanding pneumatic tasks with ease.
- • **Durable Galvanized Carbon Steel:** Rustproof finish ensures long-lasting performance under pressure.

## Overview

The Therwen 4 Pcs 3/4'' Chicago Air Fittings set features universal 2-lug couplings made from galvanized carbon steel, designed for durability and rust resistance. Each fitting includes a safety lock and rubber washer, supporting up to 150 PSI pressure, making it ideal for pneumatic tools, compressors, and automotive applications. This 4-piece pack ensures secure, leak-free connections and hassle-free maintenance.

## Description

Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting | 2 Lug Universal Coupling for Female and 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 |
| Best Sellers Rank | #44,249 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Air Tool Fittings |
| Brand | Therwen |
| Brand Name | Therwen |
| Color | Silver |
| Connector Type | Coupling |
| Customer Reviews | 4.8 out of 5 stars 36 Reviews |
| Exterior Finish | Silver |
| Item Dimensions | 3.94 x 3.94 x 3.35 inches |
| Item Highlight | 2 Lug Universal Coupling for Female and Male End |
| Item Weight | 2.2 pounds |
| Item dimensions L x W x H | 3.94 x 3.94 x 3.35 inches |
| Manufacturer | Therwen |
| Manufacturer Part Number | GFA-Therwen-1666 |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Model Number | GFA-Therwen-1666 |
| Number of Packs | 4 |
| Number of Pieces | 4 |
| Set Name | Set of 4 |
| Size | 3/4'' |
| Thread Size | 3/4'' NPT |
| Thread Type | NPT |
| Unit Count | 4 Count |

## Product Details

- **Brand:** Therwen
- **Color:** Silver
- **Connector Type:** Coupling
- **Exterior Finish:** Silver
- **Item Weight:** 2.24 Pounds
- **Item dimensions L x W x H:** 3.94 x 3.94 x 3.35 inches
- **Material:** Carbon Steel
- **Size:** 3/4''
- **Thread Size:** 3/4'' NPT
- **Thread Type:** NPT

## Images

![Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting - Image 1](https://m.media-amazon.com/images/I/81Vw6DJGu5L.jpg)
![Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting - Image 2](https://m.media-amazon.com/images/I/71TRCdx7xmL.jpg)
![Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting - Image 3](https://m.media-amazon.com/images/I/71tzmlThNnL.jpg)
![Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting - Image 4](https://m.media-amazon.com/images/I/71xPQFJmDaL.jpg)
![Therwen 4 Pcs 3/4'' Chicago Air Fittings Npt Iron Air Hose Fitting - Image 5](https://m.media-amazon.com/images/I/71CDdTFDKhL.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.

### ⭐⭐⭐⭐ Cargo net anchor straps don't hold tension
*by J***S on November 17, 2025*

Was a two piece package no issues other than delivered to my neighbor with the air fittings. Second item in package is a cargo net from Amazon by Autofonder.

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**Shop now:** [https://www.desertcart.jp/products/619247324-therwen-4-pcs-3-4-chicago-air-fittings-npt-iron](https://www.desertcart.jp/products/619247324-therwen-4-pcs-3-4-chicago-air-fittings-npt-iron)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-23*