Pentair Shaft Seal | U109-372SS C7451 5" x 3" sizes for

5" x 3" sizes for easy use in conjunction with the jandy valve actuator for automatic operation

The Pentair Assembly

This Type B cartridge can only be used in those older models if you already have the white adapter ring originally supplied by Intex with your pump

When the switch is confirmed defective

This is available in white

Pentair Shaft Seal | U109-372SS C7451 5" x 3" sizes forThe Pentair Shaft Seal (U109 372SS) is the OEM replacement shaft seal for Pentair pool and spa pumps, used during motor replacement and routine pump service. The shaft seal creates the critical barrier between the pump's wet end and the motor, preventing water from contacting the motor bearings. When replacing a pump motor, the shaft seal must always be replaced at the same time reusing a worn seal on a new motor is a leading cause of premature motor