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UGF Uplift Knockout Plugs, 4 pack

  • If you punch out too many knockouts on the under gravel filter, it will not function properly.
  • Knockout Plugs snap into the holes to cover them, restoring an otherwise inoperative filter plate.
  • Fits Lee's® Original and Economy Under Gravel Filters.
  • Displayed 4 on a blister card.