🔧 Premium John Guest Copolymer Fitting - Optimized for Imperial Systems Review

This fitting is a must-have for any industrial and scientific plumbing system. As a result of my tests, I determined that this fitting is incredibly durable and long-lasting. It's also very easy to install and is compatible with a wide range of tubing. The only downside is that it's a bit more expensive than some other fitting options, but the quality makes it worth the price. Overall, I highly recommend this fitting for anyone in need of a reliable and efficient plumbing solution.

I bought this to prevent feed water from flowing back into the Ro system. Works as it should. We live in a village and sometimes the electricity goes out. Our well starts at 40psi and closes at 60psi. A reverse osmosis system operates from 20 psi to 40 psi. If the power goes out, the well pressure can drop below 40 psi and the reverse osmosis can reverse. This check valve is just a safety device and provides peace of mind. I would buy this again.

Used to prevent back flow in an industrial grade condensate pump. We have a steam humidifier so we need to use a pump rated for 400 degree water. The check valve that came with the pump was a nightmare - terrible vibration when pumping, then terrible rumble (and no back flow prevention at all) when shut off. high level. This John Guest fitting has been going on for a few (peaceful!) months now. It is absolutely silent, creates no turbulence when pumping and provides an instant shut-off without…