Pentair C/CC/D Series Buna Shaft Seal (U109-433SS) vacalert The stud detail makes this

The stud detail makes this assembly especially useful in setups where the original mounting arrangement needs to be preserved exactly

The Pentair EC-342001 SuperFlo VST variable-speed pump is designed for compatible pool circulation applications and features a 1

That helps keep repairs simple and focused on the actual sealing point

That helps restore system functionality with a central replacement component instead of piecing together separate controls

Pentair C/CC/D Series Buna Shaft Seal (U109-433SS) vacalert The stud detail makes thisPentair 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