Pentair Diffuser | SuperFlo DOE / SuperMax Pool Pump | 356358Z

OEM Diffuser for Pentair SuperFlo DOE and SuperMax Pool Pumps

The Pentair Diffuser (356358Z) is the OEM replacement diffuser for the SuperFlo DOE and SuperMax inground pool pumps. If your pump is losing prime, running noisily, or delivering reduced flow, a worn or cracked diffuser is a common cause — this is the correct factory-spec replacement.

What It Does

The diffuser channels water from the impeller into the pump's volute, converting rotational velocity into pressure. A damaged or degraded diffuser disrupts this flow path, reducing hydraulic efficiency and causing the pump to work harder for less output. Replacing it restores designed flow performance to your SuperFlo DOE or SuperMax pump.

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 your specific pump model number matches one of the compatible models listed above — diffusers are sized to match the impeller, and an incorrect diffuser will not restore correct hydraulic performance. The part number 356358Z is molded into or printed on the original diffuser; match it directly before adding to cart. While the pump is open for this service, inspect the shaft seal and lid O-ring and replace them if there is any sign of wear — addressing all wet-end components in a single service visit avoids a repeat teardown.