Determine o-ring size

Egreenwood

Member
Jun 18, 2016
6
Toronto, Ontario
Pool Size
75000
Surface
Plaster
Chlorine
Liquid Chlorine
Hi, I have a pentair sand filter with their 6-way valve on the top. It has an air bleeder in it and the o-ring is worn out on the air bleeder. Unfortunately the parts list in the manual does not have the o-ring size or a part number listed for it. The part number for the Air Bleeder is 273512. I am looking for how to determine the o-ring size. Please post any suggestions?
 

Pentair/PacFab FNS O-Ring Bleeder For Filters (#273513)​



  • O-ring bleeder replacement
  • Fits Pentair Nautilus and Nautilus Plus pool/spa D.E. filter models NS24, NS36, NS48, NS60, NS72, NSP-24, NSP-36, NSP-48, NSP-60, NSP-72
  • Also fits Pentair FNS pool and spa D.E. filter models FNS 24, FNS 36, FNS 48, FNS 60
  • Also compatible with Pentair Triton C, C-3, TR100C and TR140C pool/spa sand filters
  • Measures 1/2-inch length by 1/2-inch height by 1/4-inch width
 
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