Pentair Sta-Rite DuraGlas 5/8" Shaft Seal, Buna, Pre-1998 (U109-93SS) maytronics or no longer tracking properly

or no longer tracking properly

The black finish also makes it a clean visual match for many darker plumbing and equipment environments

or no longer aligning correctly with the supported nozzle extension setup

Proper lubrication helps reduce pinching

Pentair Sta-Rite DuraGlas 5/8" Shaft Seal, Buna, Pre-1998 (U109-93SS) maytronics or no longer tracking properlyThis 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,