---
product_id: 722063436
title: "Horiznext 5/16 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (2 pcs)"
brand: "horiznext"
price: "¥4014"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/722063436-horiznext-5-16-inch-stainless-steel-304-compression-fitting-tube
store_origin: JP
region: Japan
---

# 1000 PSI Max Pressure Extreme Temp Range -212°F to 1472°F 304 Stainless Steel Durability Horiznext 5/16 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (2 pcs)

**Brand:** horiznext
**Price:** ¥4014
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence: The Ultimate Stainless Steel Compression Fitting for Pros

## Quick Answers

- **What is this?** Horiznext 5/16 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (2 pcs) by horiznext
- **How much does it cost?** ¥4014 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/722063436-horiznext-5-16-inch-stainless-steel-304-compression-fitting-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:** Premium 304 stainless steel ensures unmatched corrosion resistance and heavy-duty durability for long-term reliability.
- • **Pressure-Ready:** Engineered to withstand up to 1000 PSI, perfect for demanding air, water, and fuel system applications.
- • **Compact & Efficient:** Two-piece set designed for quick, secure fittings that save time and prevent leaks, keeping your system running smoothly.
- • **Universal Compatibility:** Seamlessly connects 5/16" outer diameter tubes including stainless steel, copper, and semi-rigid plastics—versatility at its finest.
- • **Extreme Temperature Tolerance:** Operates flawlessly from cryogenic lows of -212°F to scorching highs of 1472°F—ready for any environment.

## Overview

This 5/16 inch stainless steel 304 compression fitting is a heavy-duty, corrosion-resistant connector designed for air, water, and fuel systems. Compatible with stainless steel, copper, and plastic tubing, it supports pressures up to 1000 PSI and operates across an extreme temperature range from -212°F to 1472°F, ensuring reliable performance in the toughest conditions.

## Description

Full description not available

## Features

- Made of stainless steel 304, heavy duty, durable and corrosion resistance.
- Used to connect 5/16" outer diameter tube
- Fittings for connecting and extending stainless steel, copper, rigid and semi-rigid plastic tubing
- Maximum working pressure of 1000 psi
- Temperature range from -212 to +1472 degrees ℉

## Product Details

- **Size:** 5/16 inch 2pcs
- **Material:** Stainless Steel
- **Brand:** Horiznext
- **Color:** Stainless Steel
- **Item dimensions L x W x H:** 1.8 x 1.4 x 0.6 inches
- **Exterior Finish:** Stainless Steel
- **Manufacturer:** Horiznext

## Images

![Horiznext 5/16 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (2 pcs) - Image 1](https://m.media-amazon.com/images/I/416yU1-Dg5L.jpg)

## Available Options

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

## 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.

## Frequently Bought Together

- Horiznext 5/16 inch Stainless Steel 304 Compression Fitting for tube, connect air line brass pipe, adapt copper brake hose water fuel system (2 pcs)
- Vigorous Stainless Steel Tubing Coil, 3/8" x 25Ft 304 Stainless Steel Tubing, Welded Stainless Steel Tubing

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**Shop now:** [https://www.desertcart.jp/products/722063436-horiznext-5-16-inch-stainless-steel-304-compression-fitting-tube](https://www.desertcart.jp/products/722063436-horiznext-5-16-inch-stainless-steel-304-compression-fitting-tube)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-02*