This is a replacement Pentair #2-325 Drain Plug or Valve Stem O-Ring for Clean and Clear Plus, Predator Cartridge Filters, EasyClean, FNS and Meteor Sand Filters, Push Pull and Slide Valves. Some part number replacements are: Advance OV11325, Pentair/American 510050, Pentair/PacFab 152122, and 27309.
This Pentair O-ring is used on Filters manufactured after 11/98.
