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    Pentair NS/FNS/FSH Filter Air Relief Spacer, 273505

    No. 4 Image 273505 Pac Fab FNS Filter Spacer Used on Pac Fab (Pentair) NS/NSP and FNS Nautilus pool filters and FSH Seahorse pool filters. The Spacer is used between the tank and locknut, inside the tank, to secure the Air Relief assembly, pn 253550. 273505 can also be found on PacFab DE filter parts pages
      • Item: # ZPEN5696 PENTAIR FNS DE FILTER SPACER - 273505 $5.99
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