Magic Plastics 3" S Smart-Check Water Check Valve (0821-30C) insparation This type of part is

This type of part is especially useful during routine service when the original basket has become brittle or damaged from repeated use and cleaning cycles

supporting circulation and the steady movement of water through the system

or no longer performing correctly but the surrounding hardware does not need replacement

and use only a lubricant suitable for pool and spa seals when lubrication is required

Magic Plastics 3" S Smart-Check Water Check Valve (0821-30C) insparation This type of part isA check valve helps provide one way flow control in a compatible plumbing system, and this Magic Plastics Smart Check version features a 3 inch slip configuration using the 0821 30C reference. Check valves are useful because they help prevent undesirable reverse flow that can interfere with normal system performance. This part has practical value because the 3 inch slip Smart Check format is sized for larger compatible plumbing applications where