ASOV- Auto Shut off Valve. Push in connections. These are pressure sensitive devices. A piston moves in relation to water pressure. When there is a lot of pressure on the pure water side of your system the piston moves to close off the water supply to the system. When you start using system, water pressure is relieved and the piston moves to allow tap water to enter the system. You can use this valve with a float valve in a storage tank and have totally automatic tank filling and shut down system. If you have a home RO with a pressure tank, you do not need a float for the system to be automatic. Replaces existing ASOV in most systems and can be added to older systems that do not automatically shut down.

ASOV- Auto Shut off Valve. Push in connections. These are pressure sensitive devices. A piston moves in relation to water pressure. When there is a lot of pressure on the pure water side of your system the piston moves to close off the water supply to the system. When you start using system, water pressure is relieved and the piston moves to allow tap water to enter the system. You can use this valve with a float valve in a storage tank and have totally automatic tank filling and shut down system. If you have a home RO with a pressure tank, you do not need a float for the system to be automatic. Replaces existing ASOV in most systems and can be added to older systems that do not automatically shut down.