Pentair Wear Ring | CSPH/CCSPH Series Pump | 16830-0120

The Pentair Wear Ring (16830-0120) is the OEM replacement wear ring for the CSPH and CCSPH Series commercial pool pumps, sold individually.

What It Does

The wear ring maintains the critical clearance between the impeller and the pump housing, controlling recirculation of water within the pump volute. As this ring wears, internal bypass increases and hydraulic efficiency drops — the pump moves less water for the same energy input. Replacing a worn ring restores the pump to its rated flow performance. Match the part number stamped on your existing component before ordering.

Specifications

Fits Into

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Pro Tip

Wear ring degradation typically shows up as a gradual, unexplained drop in flow rate or pump output rather than a sudden failure. If your CSPH/CCSPH pump is running but flow has declined and the impeller checks out, inspect the wear ring for scoring, grooving, or visible clearance gaps around the impeller eye. Replacing the wear ring at the same service interval as the shaft seal is good practice on high-horsepower commercial pumps — the pump is already disassembled and the labor cost of a second teardown far exceeds the cost of the ring itself.