Review on 💧 Pack of 5 Ball Valves for 1/4-Inch RO Water Tanks - Quick Connect Fittings for Reverse Osmosis Water Filtration Systems by Carrie Williams

Works well. One of them broke trying to stop the leak, slowly tightening it until it broke. On the second try I used what I thought was a ridiculous amount of teflon tape, but it took a lot less tightening and no leaks! I wrapped the threads around the tank about 8 times and couldn't see the threads anymore. But it worked and kept the pressure in the tank for several weeks. They were much cheaper than the valve sold by the reverse osmosis system manufacturer.