Pentair Impeller | C Series High Performance Commercial Pump | 070225

The Pentair Impeller (070225) is the OEM replacement medium head impeller for the C Series High Performance Commercial Pump, specifically the CMK-150 and CMKL-150 models running a 15HP, three-phase configuration.

The impeller is the rotating component at the heart of the pump's hydraulic assembly. It converts motor shaft energy into flow, drawing water through the suction inlet and discharging it under pressure into the return circuit. A medium head impeller is matched to applications requiring a balance of flow rate and pressure — replacing it with the correct OEM specification ensures the pump continues to operate within its designed hydraulic performance curve. Substituting an incorrect impeller profile will shift the pump's operating point and can result in motor overload or reduced flow.

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

C Series pumps are available in multiple horsepower ratings and both single-phase and three-phase configurations — and each combination uses a different impeller. Before ordering, confirm that your pump is the CMK-150 or CMKL-150, that it is rated for 15HP, and that it is wired for three-phase power. The impeller profile (medium head vs. high head) also differs; check the part number stamped or molded on your existing impeller to confirm you are ordering the correct variant. Installing a mismatched impeller will alter the pump's hydraulic output and can place the motor outside its design load range.