Pentair Posi-Flo II Cartridge Filter O-Ring, WC9-3

Mfg #:
WC9-3 |
STA-051-3783 |
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Pentair WC9-3 Black O-Ring For Posi-Flo II Cartridge Filter - PTM Series; Posi-Flo II Cartridge Filter - PTM 135 Series; Separation Tank Assembly

Used On

  • Posi-Flo II Cartridge Filter Model PTM135  
  • Posi-Flo II Filter PTM50, PTM70, PTM100  
  • Sta-Rite Posi-Flo TX/TXR GPM-TX Series  
  • Posi-Flo Models T-50, T-70, T-100 Series  
  • Sta-Rite 60SEP D.E. Separation Tank 


  • 5
    Works as Intended

    Posted by Ocsic007 on Feb 1 2022

    Replaced ORing on Sta Rite Posi Flo 50 TX. Fixed leaking issue.

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