The 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 a dependable test seal. Having the related sealing and fastening pieces included makes it a cleaner, more complete service solution.The 43110709R is a practical service part for compatible Carvin or Jacuzzi swim jet systems that need renewed pressure-testing support and cleaner setup integrity. Carvin Swim Jet pressure test plug Fits compatible PSJ and CSJ applications Includes gasket and screws Useful for sealing the system during pressure testing or service Supports cleaner and more dependable maintenance work