--- 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: "€ 53.21" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.gr/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off store_origin: GR region: Greece --- # 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:** € 53.21 **Availability:** ✅ In Stock ## Summary > 🚰 Twist, Connect, Done — Plumbing Made Effortless! ## 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?** € 53.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 chemical resistance ensures leak-free performance behind walls. - • **Certified Safe:** NSF 61 & 51 certified for potable water—trusted for your home and health. - • **Pressure Tested:** Handles up to 150 PSI at 70°F, perfect for demanding plumbing setups. - • **Pro-Grade Reliability:** Preferred by professionals for permanent, secure shut-off in residential and commercial projects. - • **Effortless Installation:** Push-to-connect design means no tools, glue, or soldering—get it done in seconds. ## Overview The John Guest Speedfit 3/8 Inch OD Straight Shut Off Valve is a high-quality, food-safe polypropylene plumbing fitting featuring push-to-connect technology for quick, tool-free installation. Rated for 150 PSI at 70°F and certified NSF 61 & 51, it ensures durable, leak-free shut-off for potable water and hydronic systems, making it a trusted choice for professional and DIY plumbing projects. ## 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. ## 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 | | Best Sellers Rank | #972 in Industrial Pipe Fittings | | Date First Available | 5 September 2012 | | Is Discontinued By Manufacturer | No | | Item Model Number | PPSV041212WP | | Manufacturer | Reliance Worldwide Corporation | | Product Dimensions | 8 x 4 x 15 cm; 29 g | ## Product Details - **Brand:** John Guest - **Colour:** White - **Item dimensions L x W x H:** 8 x 4 x 15 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 ### ⭐ Incompatible sans modification *by on Reviewed in France 7 February 2026* Ce n'est pas le diametre dont j'ai besoin, mais impossible de l acheter en diametre 15 ### ⭐⭐⭐⭐⭐ Fast & Effective *by on Reviewed in Canada 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. ### ⭐⭐⭐⭐⭐ Costoso ma funzionante *by on Reviewed in Italy 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 - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off](https://www.desertcart.gr/products/280022204-john-guest-speedfit-3-8-inch-od-straight-shut-off) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-11-09*