Pentair Shaft Seal, 5/8" Shaft, Buna (U109-136SS) prostar or is no longer worth

or is no longer worth repairing

Using the correct Lasco cross can help simplify the layout and support a more organized plumbing design

and a clearly defined threaded bottom for compatible systems

or filtration problems caused by broken internal parts

inspect other wear parts at the same time

Pentair Shaft Seal, 5/8" Shaft, Buna (U109-136SS) prostar or is no longer worthThis 5 8" Buna shaft seal is designed for compatible Sta Rite pump repairs where the seal between the wet end and motor has started to fail. Replacing the seal can help stop leaks, protect motor bearings, and restore confidence after a pump has been opened for service. It is a practical part to keep on hand for maintenance teams working on common pool pump rebuilds. For best results, inspect the impeller, seal plate, and shaft surface at the same