John Guest PPSV041212WP Plastic Push Shut Off Valve, White, 3/8 in. Tube OD

I now only buy John Guest. Never leak, always a good solid push fit in the connector and easy to install and forget about. They are expensive for what they are but as the saying goes buy cheap buy twice.

Like all JG fittings this simply worked first time. Don't waste your time with other brands.

John Guest quality, push fit, done.

Exactly what's needed

Great quality valve

John Guest are definitely the best push fit products out there while plumbing in my coffee machine i bought a cheap pack of pipe and fittings which i ended up replacing all the part to JG due to leaks. now everything is perfect.

Does the job easy to use feels sturdy

Perfect for isolating 10mm plumbing in a new build house that the developer conveniently forgot to install any local isolation in…

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

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.

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

Works like it should on 1/4 inch plastic line connecting cold water to humidifier. Connects in seconds. NO LEAKS. Opens and closes easily. I would buy this again if I needed.

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.