Pentair 355331 Diffuser O-Ring – Superflo Vs Vst

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Pentair Diffuser O-Ring || 355331 The diffuser o-ring is a replacement part that was made by Pentair. The same high-quality materials were used to manufacture the original factory part. Making this a genuine OEM product. This Pentair diffuser o-ring is used with Pentair Challenger high flow and high-pressure inground pumps. It is also compatible with Pentair WaterFall specialty pumps. O-Ring is 1/8" thick and measures just under 3" inside diameter. Show more