---
product_id: 280022204
title: "John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV041212WP"
brand: "john guest"
price: "151.76 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "John Guest"
url: https://www.desertcart.tn/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off
store_origin: TN
region: Tunisia
---

# Food-grade EPDM O-rings 150 PSI max pressure Tool-free twist-and-lock install John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV041212WP

**Brand:** john guest
**Price:** 151.76 DT
**Availability:** ✅ In Stock

## Summary

> 🚰 Twist, Connect, Done — Plumbing Perfection in Seconds!

## Quick Answers

- **What is this?** John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV041212WP by john guest
- **How much does it cost?** 151.76 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off)

## 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

- • **Lightweight Yet Tough:** Polypropylene construction weighs just 29 grams but delivers chemical resistance and long-lasting reliability.
- • **Safe for What Matters:** Crafted with food-grade EPDM O-rings and NSF 61 & 51 certified for potable water—trust your water quality.
- • **Pressure-Ready Performance:** Rated for 150 PSI at 70°F and 60 PSI at 140°F—built to handle your toughest plumbing demands.
- • **Durability Meets Discretion:** Approved for behind-the-wall use, ensuring a permanent, leak-free connection that stays out of sight and mind.
- • **No-Tool, No-Fuss Installation:** Push-to-connect design with twist-and-lock action means zero glue, soldering, or crimping—DIY plumbing made effortless.

## Overview

The John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve is a high-performance, tool-free plumbing fitting made from durable polypropylene with food-grade EPDM O-rings. Rated for up to 150 PSI at 70°F, it offers a secure, leak-free connection ideal for potable water and behind-the-wall installations. Certified to NSF 61 and 51 standards, this valve combines professional-grade reliability with effortless DIY installation.

## Description

Simplify your plumbing and home improvement projects with the John Guest shut-off valve. Made from polypropylene, this push-to-connect fitting requires no tools or glue for a secure, leak-free connection. This plumbing shut-off valve is fitted with food-grade EPDM O-rings and is NSF 61 and 51 certified. These safe and durable shut-off valves are approved for behind-the-wall applications as a permanent leak-free connection and are certified for use in potable water and hydronic heating system applications. John Guest plastic push straight shut-off valves are rated at 150 PSI at 70 degrees Fahrenheit and 60 PSI at 140 degrees Fahrenheit.

Review: Ce n'est pas le diametre dont j'ai besoin, mais impossible de l acheter en diametre 15
Review: Great device as I had a small leak in a copper pipe and after using this the leak has been completely fixed. I tried using anti-leak tape & spray but they didn't work on the copper so I took a chance on this and it worked perfectly. Anyone with some basic DIY skills can install this, just make sure you have a great tube cutter on hand.

## Features

- JOHN GUEST SHUT-OFF VALVE: This John Guest shut-off valve is manufactured in white polypropylene and fitted with food-grade EPDM O-rings; suitable for use with 3/8 inch OD plastic or soft copper tubing
- EASY TO INSTALL: The twist-and-lock feature of this straight shut-off valve allows for quick and easy installation, with no tools, crimping, glue, or soldering required
- SAFE, DURABLE, AND HIGH QUALITY: This shut-off valve is durable and non-toxic; provides excellent chemical resistance; NSF 61 and 51 certified
- PREFERRED BY THE PRO: These shut-off valves are for use with potable water; approved for behind-the-wall applications as a permanent leak-free connection
- SPECS: John Guest plastic shut-off valve fittings are rated at 150 PSI at 70 degrees Fahrenheit and 60 PSI at 140 degrees Fahrenheit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003YKF2F6 |
| ASIN  | B003YKF2F6 |
| Best Sellers Rank | #64,492 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #381 in Industrial Pipe Fittings |
| Brand Name | John Guest |
| Color | White |
| Connector Type | 3/8OD x 3/8OD STRGHT VLV |
| Customer Reviews | 4.7 4.7 out of 5 stars (432) |
| Customer reviews | 4.7 4.7 out of 5 stars (432) |
| Date First Available  | 5 September 2012 |
| Exterior Finish | Plastic |
| Global Trade Identification Number | 00665626120381 |
| Included Components | Valve |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 15 x 8 x 4 centimeters |
| Item Type Name | Plastic Push Shut Off Valve |
| Item Weight | 29 Grams |
| Item model number  | PPSV041212WP |
| Manufacturer | Reliance Worldwide Corporation |
| Manufacturer  | Reliance Worldwide Corporation |
| Material Type | polyprolylene |
| Model Number | PPSV041212WP |
| Number of Pieces | 1 |
| Product Dimensions  | 15 x 8 x 4 cm; 29 g |
| Size | 3/8 in. Tube OD |
| Thread Size | 0.375 inch |
| Thread Type | NPTF |
| UPC | 665626120381 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** John Guest
- **Colour:** White
- **Item dimensions L x W x H:** 15 x 8 x 4 centimeters
- **Material:** polyprolylene
- **Size:** 3/8 in. Tube OD

## Images

![John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV041212WP - Image 1](https://m.media-amazon.com/images/I/61oR6Zm7JhL.jpg)

## Available Options

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

## Questions & Answers

**Q: How do you install it to get it watertight? Looked for youtube videos - no luck!**
A: The fitting itself is watertight. If its not, its defective. Once you push the pipe into this fitting you will feel it "pop" or "slip" into the seat where it becomes watertight. If its sitting right, you should not be able to pull this pipe out, nor should there be any leakage from it.

**Q: Can you control the speed of water flow through this valve?**
A: I don't see why not.  For my use, it's only open or closed. You would actually be controlling the amount of flow not the speed.

**Q: Does this value have or require a california proposition 65 warning for california residents? thanks!**
A: Prop65 applies to any material, the warning is required even if a trace amount of over 1000 substances from the Prop65 list maybe present.
We have the warning on our bags to comply with the requirement of the Prop65 regulation for “clear and reasonable” warning.

**Q: Does this work with 1/4 in drip irrigation tubing?**
A: I used it with a 1/4" pex line for a fridge filter not totally sure about the irrigation line, you can try it out for a test before installing to be sure. A good sharp tubing cutter will help for a better seal and fit. Good Luck

## Customer Reviews

### ⭐ Review
*by C***L on 7 February 2026*

Ce n'est pas le diametre dont j'ai besoin, mais impossible de l acheter en diametre 15

### ⭐⭐⭐⭐⭐ Review
*by N***S on 14 July 2025*

Great device as I had a small leak in a copper pipe and after using this the leak has been completely fixed. I tried using anti-leak tape & spray but they didn't work on the copper so I took a chance on this and it worked perfectly. Anyone with some basic DIY skills can install this, just make sure you have a great tube cutter on hand.

### ⭐⭐⭐⭐⭐ Review
*by G***I on 7 January 2024*

Pensavo costasse meno ma è esattamente quello che mi serviva al lavoro. Un ottimo prodotto resistente.

## Frequently Bought Together

- John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White
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- John Guest 3/8 Inch x 25 Feet LLDPE Tubing, Flexible Water Tubing for Plumbing, Blue, PE-12-EI-025F-B

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-15*