Waterway Tee Check Valve [ES Series 1/2"s w/Cap Foam] (670-2220) waterfall or no longer functioning correctly

or no longer functioning correctly at the return point

Helps trap debris inside the skimmer housing

The Waterway 400-4200 union tee assembly is designed for compatible plumbing applications and includes a 1-1/2 inch union nut with a 1 inch slip by 1 inch slip tee

or leaking pump connections

Useful when the original part is damaged or leaking

Waterway Tee Check Valve [ES Series 1/2"s w/Cap Foam] (670-2220) waterfall or no longer functioning correctlyWaterway Tee Check Valve [ES Series 1 2"s w Cap Foam] is a Waterway Plastics check valve fitting for compatible plumbing and bath spa systems. It is designed to help manage water or air movement direction in the line, supporting dependable operation where backflow control is needed. Use it when replacing a worn check valve component or restoring proper function in a matching Waterway ES Series assembly. When selecting replacement pool or spa parts,