Pentair Diffuser, 2F Frame, 2-1/2A | Challenger High Flow Pump | 355094Z

The Pentair 355094Z is the OEM replacement diffuser for the 2F frame, 2-1/2A configuration of the Challenger High Flow pump series.

The diffuser channels water from the impeller into the pump's volute, converting velocity into pressure to maintain consistent flow through your pool or spa system. A cracked, warped, or worn diffuser reduces hydraulic efficiency and can cause the pump to lose prime or deliver reduced flow. Replacing it with the correct OEM part restores the pump to its designed performance specification.

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

Before ordering, confirm the frame designation and horsepower configuration stamped on your existing diffuser or listed in your pump's parts breakdown. The Challenger High Flow series uses multiple diffuser variants — selecting by frame size (2F) and amp rating (2-1/2A) rather than horsepower alone ensures you receive the correct fit.