---
product_id: 10543038
title: "John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8\" Tube OD x 1/2\" NPTF Male (Pack of 10)"
brand: "john guest"
price: "€ 74.90"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.ie/products/10543038-john-guestacetal-copolymer-tube-fitting-straight-adaptor-3-8-tube
store_origin: IE
region: Ireland
---

# Low moisture absorption Straight connection 150 psi pressure rating John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/2" NPTF Male (Pack of 10)

**Brand:** john guest
**Price:** € 74.90
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence!

## Quick Answers

- **What is this?** John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/2" NPTF Male (Pack of 10) by john guest
- **How much does it cost?** € 74.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/10543038-john-guestacetal-copolymer-tube-fitting-straight-adaptor-3-8-tube)

## Best For

- john guest enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Crafted from acetal copolymer for superior strength and longevity.
- • **Certified Quality:** Meets NSF/ANSI standards 14, 51, and 61 for peace of mind.
- • **Seamless Connectivity:** Effortlessly connects pipes and fittings in a straight line.
- • **High-Pressure Performance:** Handles up to 150 psi, ensuring reliability in demanding environments.
- • **Push-to-Connect Convenience:** Quickly attach and detach with a simple push mechanism.

## Overview

The John Guest Acetal Copolymer Tube Fitting is a robust straight adaptor designed for seamless connections between pipes or fittings. With a push-to-connect feature, it offers quick and reliable assembly, while its durable acetal copolymer construction ensures low moisture absorption and high tensile strength. Capable of withstanding pressures up to 150 psi, this fitting meets stringent NSF/ANSI standards for quality assurance, making it a trusted choice for professional applications.

## Description

John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/2" NPTF Male (Pack of 10)

## Features

- Straight adapter connects pipes or fittings of different types in a straight line
- Push-to-connect fitting connects to pipes or tubing on one end and has an NPTF male connector on the other
- Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength
- Working pressure of up to 150 psi
- Meets NSF/ANSI standards 14, 51, and 61 for quality assurance

## Images

![John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/2" NPTF Male (Pack of 10) - Image 1](https://m.media-amazon.com/images/I/61embsf6ctL.jpg)
![John GuestAcetal Copolymer Tube Fitting, Straight Adaptor, 3/8" Tube OD x 1/2" NPTF Male (Pack of 10) - Image 2](https://m.media-amazon.com/images/I/61UDqbhuW-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Does the job
  

*by S***Y on Reviewed in the United States on October 6, 2022*

Despite it being nptf rated (nptf does not require seal vs npt) I still had to use teflon tape for the threaded part so it wont leak.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Grip tight, with no leaks
  

*by G***Z on Reviewed in the United States on March 27, 2019*

I needed over 2 dozen “push-to-connect” fittings for building a Reverse Osmosis system for my maple syrup operation. Having used John Guest fittings before I knew they would fit the need. They grip tight, but still allow easy (hand) removal.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Water tight
  

*by M***R on Reviewed in the United States on January 29, 2022*

Easy to use well built

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**Shop now:** [https://www.desertcart.ie/products/10543038-john-guestacetal-copolymer-tube-fitting-straight-adaptor-3-8-tube](https://www.desertcart.ie/products/10543038-john-guestacetal-copolymer-tube-fitting-straight-adaptor-3-8-tube)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-13*