Part # O-318

Alternate Part #'s 111-0863, 111863, 319-4100B, 350013, 352600, 355332, 805-0436B, O-318, O318, 350013Z, 90-423-5436, APCO2142, PEN350013Z

Product Description

Pump strainer basket lid o-ring is used on various Pentair and Waterway pool pumps including the Challenger, WhisperFlo, Pinnacle, IntelliFlo, Mustang, Champion, and Econo-Flo.  This o-ring provides a seal to prevent leaking from the pump lid.

Inside diameter: 5-7/8"
Outside diameter: 6-3/8"
Cord thickness: 1/4"

Frequently Bought with O-rings

Magic Lube O-ring Lubricant


?     Asked on 9/14/2022by Carol Novotny

The O-ring on my Challenger Filter Basket has totally worn out. The number on my lid is 35-5301. Will this O-ring fit this lid?

A  Answered on 9/14/2022 by InyoPools Product Specialist Craig C.

Hello Carol.  The Lid O-ring for Pentair Whisperflo & Challenger (350013) - O-318 is the correct lid o-ring for the Pentair Challenger Pool Pump lid part number 35-5301.


Review Summary

 (Average 4.5  out of 5 stars)
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