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    Pentair Pac-Fab Filter Air Bleeder Screw O-ring - Fits 273512

    Item # ZPEN7441 Manuf.# 273513

      Genuine Pentair (Pac-Fab Purex) O-ring 273513 for the Air Bleeder Knob, used on Pac-Fab Seahorse, Triton and Nautilus pool filters, and on PacFab top mounted multiport valves used on Sand Dollar and Tagelus filters. Very small o-ring measures 1/2" diameter, and fits onto the end of the 273512 Air Bleeder Screw or knob. OEM 273513 replaces O-628 generic o-rings.

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