Two black, cylindrical, porous foam filters are shown standing upright against a plain white background. The filter on the left is shorter and smaller in diameter than the taller, wider filter on the right.
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AQUARIUM CO-OP PRE FILTER SPONGE 25 PPI

$4.99$10.99

AQUARIUM CO-OP COARSE SPONGE PAD 9X9X1

$8.99
Two packaged aquarium filter bags from Aquarium Co-Op are shown side by side. The left package is labeled Small Filter Bag 3 x 8 and the right is labeled Large Filter Bag 4 x 12, both with green labels.
Select options This product has multiple variants. The options may be chosen on the product page

AQUARIUM CO-OP FILTER MEDIA BAG

$2.99$3.99

AQUARIUM CO-OP BIO RINGS 1 LB 2 OZ (500 G)

$9.99