HYPRO 9313 SMALL O-RING
Part Number: HY17200294
Replacement Hypro 9313 pump o-ring seal kit is for centrifugal hydraulic pumps.
If your pump starts leaking from the weephole or the flow rate and/or pressure drop you most likely need to replace the parts inside the pump. The small o-ring seals the pump chamber plate to the housing flange.