--- product_id: 10542975 title: "John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White" brand: "john guest" price: "€ 17.22" currency: EUR in_stock: true reviews_count: 13 category: "John Guest" url: https://www.desertcart.pt/products/10542975-john-guest-ppsv041212wp-plastic-push-shut-off-valve-3-8 store_origin: PT region: Portugal --- # Food-grade EPDM O-rings 150 PSI cold / 60 PSI hot rating Tool-free twist-lock install John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White **Brand:** john guest **Price:** € 17.22 **Availability:** ✅ In Stock ## Summary > 🚰 Twist, Lock, and Flow—Upgrade Your Plumbing Game Instantly! ## Quick Answers - **What is this?** John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White by john guest - **How much does it cost?** € 17.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/10542975-john-guest-ppsv041212wp-plastic-push-shut-off-valve-3-8) ## 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:** Polypropylene body delivers chemical resistance and durability for behind-the-wall peace of mind. - • **Pressure-Ready:** Handles up to 150 PSI at 70°F and 60 PSI at 140°F—reliable under real-world water pressures. - • **Certified Food-Safe:** NSF 61 & 51 approved with premium EPDM seals, perfect for potable water and kitchen use. - • **Pro-Grade Reliability:** Trusted by professionals for leak-free, permanent shut-off solutions in residential plumbing. - • **Effortless Installation:** Twist-and-lock design means zero tools, glue, or soldering—get it done in seconds. ## Overview The John Guest PPSV041212WP is a high-quality, white polypropylene push-to-connect shut-off valve designed for 3/8 inch OD tubing. Featuring food-grade EPDM O-rings and NSF 61/51 certification, it ensures safe use with potable water. Its innovative twist-and-lock mechanism enables quick, tool-free installation, while its durable construction withstands pressures up to 150 PSI at 70°F. Ideal for behind-the-wall plumbing, this valve offers a leak-free, professional-grade solution favored by both DIYers and pros. ## Description Product Description Product 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. From the Manufacturer JG Speedfit is the easy to use, plastic push-fit system suitable for the plumbing of hot and cold water services and heating applications. From the Manufacturer JG Speedfit is the easy to use, plastic push-fit system suitable for the plumbing of hot and cold water services and heating applications. Review: Great John Guest Reliability - 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. Review: DIY Plumbing Success: Easy Fridge Water Supply Fix 🚰👍 - TLDR: 🌟🌟🌟🌟🌟 Effortlessly installed a shut-off valve for my fridge's water supply, saving time and money without needing a plumber. I recently faced the challenge of moving my fridge, but the lack of a shut-off valve for the copper water tubing meant potentially turning off the house's water supply, which wasn't an option. To tackle this, I armed myself with a pipe cutter, a handy gadget, and a hopeful spirit. The installation process turned out to be surprisingly simple. The first end of the gadget connected with a reassuring "pop," signaling a secure fit. The other end was a bit more stubborn, not clicking into place right away. Sensing something amiss, I applied pressure to both ends simultaneously, and sure enough, the second "pop" confirmed a successful connection. When I turned the house's water back on and switched the new valve to the 'on' position, water flowed smoothly with no signs of leakage. The feeling of triumph was immense! This quick, five-minute fix cost just a fraction of what hiring a plumber would have, with the toughest part being just moving the fridge. This DIY solution proved to be a highly effective, quick, and cost-efficient way to add a necessary shut-off valve, enhancing the practicality of my kitchen setup. ## 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 | #12,075 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #97 in Push-to-Connect Fittings | | Brand | John Guest | | Brand Name | John Guest | | Color | White | | Connector Type | 3/8OD x 3/8OD STRGHT VLV | | Customer Reviews | 4.7 out of 5 stars 1,320 Reviews | | Exterior Finish | Plastic | | Global Trade Identification Number | 00665626120381 | | Included Components | Valve | | Item Dimensions | 3.15 x 1.57 x 5.91 inches | | Item Type Name | Plastic Push Shut Off Valve | | Item Weight | 29 g | | Item dimensions L x W x H | 3.15 x 1.57 x 5.91 inches | | Manufacturer | Reliance Worldwide Corporation | | Manufacturer Part Number | PPSV041212WP | | Manufacturer Warranty Description | 12 Months against workmanship or material defects. Product replacement | | Material | polyprolylene | | Material Type | polyprolylene | | Model Number | PPSV041212WP | | Number of Pieces | 1 | | 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 - **Color:** White - **Connector Type:** 3/8OD x 3/8OD STRGHT VLV - **Exterior Finish:** Plastic - **Item Weight:** 29 g - **Item dimensions L x W x H:** 3.15 x 1.57 x 5.91 inches - **Material:** polyprolylene - **Size:** 3/8 in. Tube OD - **Thread Size:** 0.375 inch - **Thread Type:** NPTF ## Images ![John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White - Image 1](https://m.media-amazon.com/images/I/61oR6Zm7JhL.jpg) ## Available Options This product comes in different **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 ### ⭐⭐⭐⭐⭐ Great John Guest Reliability *by M***S on March 30, 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. ### ⭐⭐⭐⭐⭐ DIY Plumbing Success: Easy Fridge Water Supply Fix 🚰👍 *by C***N on January 28, 2024* TLDR: 🌟🌟🌟🌟🌟 Effortlessly installed a shut-off valve for my fridge's water supply, saving time and money without needing a plumber. I recently faced the challenge of moving my fridge, but the lack of a shut-off valve for the copper water tubing meant potentially turning off the house's water supply, which wasn't an option. To tackle this, I armed myself with a pipe cutter, a handy gadget, and a hopeful spirit. The installation process turned out to be surprisingly simple. The first end of the gadget connected with a reassuring "pop," signaling a secure fit. The other end was a bit more stubborn, not clicking into place right away. Sensing something amiss, I applied pressure to both ends simultaneously, and sure enough, the second "pop" confirmed a successful connection. When I turned the house's water back on and switched the new valve to the 'on' position, water flowed smoothly with no signs of leakage. The feeling of triumph was immense! This quick, five-minute fix cost just a fraction of what hiring a plumber would have, with the toughest part being just moving the fridge. This DIY solution proved to be a highly effective, quick, and cost-efficient way to add a necessary shut-off valve, enhancing the practicality of my kitchen setup. ### ⭐⭐⭐⭐⭐ John Guess fittings just work. Period. *by O***H on December 9, 2025* What can I say about John Guest fittings? They are wonderful! I hope John is rich, because his fittings are super easy to use, I've never had one leak, they aren't expensive (like some "other" brands of push-on fittings), and they are available pretty much everywhere. ## 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.pt/products/10542975-john-guest-ppsv041212wp-plastic-push-shut-off-valve-3-8](https://www.desertcart.pt/products/10542975-john-guest-ppsv041212wp-plastic-push-shut-off-valve-3-8) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-06*