Back PetsPoly-Bio-MarineAmazonPolybio Poly Filter Pad 4 X 8 12/PackR 3 029.37Amazon ยท checked 20 days ago View at Amazon AverageR 3 030.49Lowest seenR 3 029.37Highest seenR 3 030.49Last change-R 1.12First indexed13 Sep 2026RetailerAmazonPrice historyDescriptionIncludes 12 individually packaged filter pads.