---
product_id: 129679670
title: "3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc)"
brand: "horiznext"
price: "$21.67"
currency: USD
in_stock: true
reviews_count: 9
category: "Horiznext"
url: https://www.desertcart.us/products/129679670-3-8-inch-stainless-steel-304-compression-fitting-for-tube
store_origin: US
region: United States of America
---

# 1000 PSI Pressure Rating - Leakproof Strength Temp Range -100°F to +660°F Extreme Resilience 304 Stainless Steel - Heavy Duty Durability 3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc)

**Brand:** horiznext
**Price:** $21.67
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence — The Ultimate Compression Fitting for Pros Who Demand More

## Quick Answers

- **What is this?** 3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) by horiznext
- **How much does it cost?** $21.67 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/129679670-3-8-inch-stainless-steel-304-compression-fitting-for-tube)

## Best For

- horiznext enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium 304 stainless steel for unmatched corrosion resistance and longevity.
- • **Precision Fit:** Designed for 3/8" outer diameter tubes ensuring seamless, leak-free connections every time.
- • **Pressure Tested:** Withstands up to 1000 PSI, guaranteeing reliable performance under high-pressure applications.
- • **Versatile Compatibility:** Effortlessly connects stainless steel, copper, rigid, and semi-rigid tubing across multiple systems.
- • **Extreme Conditions Ready:** Operates flawlessly from freezing -100°F to scorching +660°F, perfect for any environment.

## Overview

The Horiznext 3/8 inch Stainless Steel 304 Compression Fitting is a robust, precision-engineered connector designed for air, water, fuel, and brake systems. Made from durable 304 stainless steel, it fits 3/8" tubes and supports pressures up to 1000 PSI while enduring extreme temperatures from -100°F to +660°F. Trusted by professionals for leak-free, long-lasting performance in demanding industrial and automotive applications.

## Description

Horiznext 3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc): desertcart.com: Industrial & Scientific

Review: Well made great value - We used these for an oiler to our chain driven over. The couplings worked great. No leaks
Review: Perfect fit - The coupler helped connect lines without any leaks. I highly recommend this part.

## Features

- Made of stainless steel 304, heavy duty and durable.
- Fit 3/8" outer diameter tube.
- Fittings for connecting and extending stainless steel, copper, rigid and semi-rigid tubing
- The working pressure can reach 1000 psi
- Temperature range from -100 to +660 degrees ℉

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P9GG5J9 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #87,274 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,672 in Pipe Fittings |
| Brand | Horiznext |
| Color | Copper |
| Connector Type | Union |
| Customer Reviews | 4.5 4.5 out of 5 stars (253) |
| Date First Available | March 1, 2019 |
| Exterior Finish | Alloy Steel, Stainless Steel |
| Item Weight | 2.08 ounces |
| Item model number | 874844644 |
| Manufacturer | Horiznext |
| Material | Copper, Stainless Steel |
| Measurement System | inch |
| Number of Pieces | 1 |
| Package Dimensions | 2.44 x 1.14 x 0.87 inches |
| Part Number | 874844644 |
| Size | 3/8“ |
| Thread Type | NPT |

## Product Details

- **Brand:** Horiznext
- **Color:** Copper
- **Connector Type:** Union
- **Exterior Finish:** Alloy Steel, Stainless Steel
- **Item Weight:** 0.06 Kilograms
- **Manufacturer:** Horiznext
- **Material:** Copper, Stainless Steel
- **Number of Pieces:** 1
- **Size:** 3/8“
- **Thread Type:** NPT

## Images

![3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) - Image 1](https://m.media-amazon.com/images/I/31XBw-g1uXL.jpg)
![3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) - Image 2](https://m.media-amazon.com/images/I/41-7EohPI9L.jpg)
![3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) - Image 3](https://m.media-amazon.com/images/I/41GKxjSr2TL.jpg)
![3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) - Image 4](https://m.media-amazon.com/images/I/41Nosigb-3L.jpg)
![3/8 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (1 pc) - Image 5](https://m.media-amazon.com/images/I/41T2WGbGr0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made great value
*by J***S on November 13, 2024*

We used these for an oiler to our chain driven over. The couplings worked great. No leaks

### ⭐⭐⭐⭐⭐ Perfect fit
*by D***. on June 22, 2024*

The coupler helped connect lines without any leaks. I highly recommend this part.

### ⭐⭐⭐⭐⭐ BAD REVIEWS ARE FROM PEOPLE THAT DON'T UNDERSTAND WHAT THIS FITTING IS FOR
*by T***4 on April 15, 2022*

Please disregard the negative reviews regarding this item not fitting or threads being wrong. Those reviews were left by people that do not understand what this fitting is for. This is a union fitting to allow you to connect to a 5/16 outer diameter (0.3125" or 8mm) metal tube. You slide the nut onto the tube. Then you slide the smaller ferrule onto the tube. Then you slide the bigger, cone-shaped ferrule onto the tube. Then you push the tube into the fitting. Then you slide the nut down the tube and begin tightening it onto the fitting. The tightening process will wedge the ferrules together - and crimp them like crazy onto the tube. You can then assemble or disassemble the joint as often as you like. Be aware the ferrules will be permanently crimped onto the tube - and the nut won't be able to be removed from the tube. Do not use on plastic or teflon tubing. This is for steel/stainless/aluminum tubing only. I suppose it would probably work on copper, but these fittings rely on your tubing being nice and round - and stiff enough to take the crimping process. They work great and can handle tens of thousands of psi of pressure.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*