Carvin Swim Jet PSJ/CSJ Pressure Test Plug [w/Gasket/Screws] (43110709R) acuraspas That makes it a strong

That makes it a strong choice where space matters and the system still needs dependable check-valve protection against reverse flow

A valve like this is useful because it gives the user a single point for directing water flow through key filter functions

LH functions

A roll out switch is useful because it helps protect the heater by responding to abnormal heat or flame conditions that should not be occurring in the intended operating area

Carvin Swim Jet PSJ/CSJ Pressure Test Plug [w/Gasket/Screws] (43110709R) acuraspas That makes it a strongThe Carvin Swim Jet pressure test plug is designed for compatible PSJ and CSJ swim jet applications where the system needs to be sealed for testing or service. A test plug like this is useful because it helps isolate the connection point during pressure checks, supporting more controlled maintenance and installation work. This replacement with gasket and screws is especially useful when the original plug set is missing, damaged, or no longer providing