Pentair C/CC/D Series Buna Shaft Seal (U109-433SS) pascospecialty the spa often feels less

the spa often feels less inviting because owners lose confidence in how quickly and consistently the water will recover

This type of replacement is often needed when the original check valve is leaking back

Helps correct unstable or inaccurate heating behavior

1-11/16 inch hole size with 1 inch slip configuration

Pentair C/CC/D Series Buna Shaft Seal (U109-433SS) pascospecialty the spa often feels lessPentair C CC D Series Buna Shaft Seal is a genuine Pentair replacement part made for compatible pool and spa pump systems. Pump components can wear over time from heat, vibration, water exposure, debris, and regular equipment use. Replacing a damaged or missing part with the correct component helps keep the pump assembly secure, serviceable, and operating as intended. This part is ideal for repair work, preventative maintenance, or equipment rebuilds