Description
This replacement diffuser O-ring is designed for compatible Pentair WhisperFlo and IntelliFlo pool pumps. The O-ring seals around the pump diffuser, helping maintain the proper seal between internal pump components during operation.
The O-359-9 is an aftermarket replacement for Pentair 355227 / 355227Z and can also be used in select Waterway Champion pump applications.
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Key Features
• Replacement pump diffuser O-ring
• Designed for compatible Pentair WhisperFlo pumps
• Fits select Pentair IntelliFlo pump applications
• Helps maintain a proper seal around the diffuser
• Aftermarket replacement component
• Cross-references Pentair 355227 / 355227Z
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Product Overview
The Diffuser O-Ring provides the sealing surface around the diffuser inside compatible pool pumps. Replacing a flattened, cracked, stretched, or deteriorated O-ring helps restore the internal seal when servicing the diffuser, impeller, or other pump components.
The O-359-9 is specifically listed as the Super-Pro WhisperFlo Diffuser O-Ring and cross-references Pentair 355227, Purex/PacFab P-24262 / 071444, and Waterway 805-0238. Exact pump compatibility should be verified before ordering.









