The Rainbow R172288 is a special corrosion resistant 1-1/4" & 2" slip spring check valve. It features a full free flow design with an enclosed spring and special seals suitable for corrosive applications, particularly when used with chlorinators to prevent backflow of chemicals.
It is used to check back flow of fluids, air, and other substances.
It prevents back flow of chemicals to pool or spa equipment to stop corrosion and damage.
Yes, the valve can be mounted in any position.