Pentair Sta-Rite DuraGlas 5/8" Shaft Seal, Buna, Pre-1998 (U109-93SS) pooltek It is often replaced during

It is often replaced during a full multiport valve rebuild

Sand filter performance relies on an even distribution of water through the standpipe and lateral assembly

or worn from age and use

contributing to cleaner internal operation and more dependable tool performance

The CMP 25307-500-020 chlorinator lid is designed for compatible Rainbow chemical feeder applications

Pentair Sta-Rite DuraGlas 5/8" Shaft Seal, Buna, Pre-1998 (U109-93SS) pooltek It is often replaced duringThis Pentair Sta Rite replacement is built for pump repair and helps service pre 1998 DuraGlas pumps requiring a 5 8 inch Buna shaft seal. It targets older pump assemblies where model year matters, making it a practical choice when the original part is cracked, worn, leaking, stripped, brittle, or missing. It is especially useful for targeted repairs where replacing a larger pump, filter, or cleaner assembly is not necessary. Confirm the part number,