---
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: "R484"
currency: ZAR
in_stock: false
reviews_count: 5
category: "John Guest"
url: https://www.desertcart.co.za/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off
store_origin: ZA
region: South Africa
---

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

**Brand:** john guest
**Price:** R484
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Upgrade your plumbing game with leak-proof speed and pro reliability!

## 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?** R484 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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

- • **Built to Last:** Durable polypropylene body with NSF 61 & 51 certification ensures safe, long-term use.
- • **Leak-Free Confidence:** Permanent behind-the-wall connection rated for potable water and hydronic heating.
- • **Compact & Lightweight:** Sleek 3/8 inch OD fitting that fits tight spaces without compromising performance.
- • **Effortless Installation:** Push-to-connect design means no tools, glue, or soldering—get it done in seconds.
- • **Pro-Grade Pressure Handling:** Handles up to 150 PSI at 70°F, perfect for demanding plumbing setups.

## Overview

The John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve is a high-quality, tool-free push-to-connect plumbing fitting made from durable polypropylene with food-grade EPDM O-rings. Certified for potable water use and rated up to 150 PSI, it offers a permanent, leak-free solution ideal for behind-the-wall installations and hydronic heating systems.

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

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #97,678 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #681 in Industrial Pipe Fittings |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (428) |
| Customer reviews | 4.7 4.7 out of 5 stars (428) |
| Date First Available | 5 September 2012 |
| Date First Available  | 5 September 2012 |
| Finish | polyprolylene |
| Included components | Valve |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 29 g |
| Item model number | PPSV041212WP |
| Item model number  | PPSV041212WP |
| Manufacturer | Reliance Worldwide Corporation |
| Manufacturer  | Reliance Worldwide Corporation |
| Material | polyprolylene |
| Measurement System | inch |
| Number Of Pieces | 1 |
| Number of Handles | 1 |
| Part number | PPSV041212WP |
| Product Dimensions | 15 x 8 x 4 cm; 29 g |
| Product Dimensions  | 15 x 8 x 4 cm; 29 g |
| Size | 3/8 in. Tube OD |
| Specific uses | Amateur, Professional |
| Specification met | NSF, fda |

## 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)

## 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 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.

### ⭐⭐⭐⭐⭐ Review
*by M***S on 30 March 2025*

Just like all Speedfit John Guest products, this valve attaches quickly and easily to John Guest tubing. The connection is leakproof as always with John Guest fittings. This is used with water pressure of 80 psi, but it is rated for much higher pressures for cold water. The valve is easy to turn and has performed normally over the last eight months, with no leak. We turn the valve back and forth about once a week. If needed, John Guest fittings can be disconnected from tubing using an inexpensive removal tool. There are optional plastic locking collets that can be added to John Guest Speedfit connectors to prevent inadvertent disconnection, but these are rarely used as an accidental disconnect is exceedingly uncommon. By the way, these are made of polypropylene and are NSF61 listed, so they may be used in a food service application with other food safe materials. Ideally, use these with John Guest LLDPE 3/8" tubing to be certain of food safety and excellent fit. I don't recommend using alternative branded (or unbranded) equivalents as you have no assurance of NSF listing and food safety.

## Frequently Bought Together

- John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White
- John Guest Speedfit 3/8 Inch Union Tee Connector, Push to Connect Plastic Plumbing Fitting, PP0212WP
- 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 South Africa*
*Store origin: ZA*
*Last updated: 2026-03-16*