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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

Price range: $4.99 through $10.99
A coarse black sponge pad in clear packaging with a green label reading aquarium co-op and COARSE SPONGE PAD, along with fish and plant graphics.
A coarse black sponge filter pad in clear packaging with a green label showing a QR code, a cartoon fish, and Aquarium Co-Op YouTube and website information. The label promotes their aquarium care resources.
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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.
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AQUARIUM CO-OP FILTER MEDIA BAG

Price range: $2.99 through $3.99
Green box labeled Aquarium Co-Op Bio Rings. Text highlights features such as reusable filter media, shape for minimal flow resistance, and promotion of beneficial bacteria. Small image shows white cylindrical rings.
Green product box showing two images: one labeled Hang-on Back Filter with filter media and foam, and another labeled Cannister Filter displaying round white filter media inside a blue container.
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AQUARIUM CO-OP BIO RINGS 1 LB 2 OZ (500 G)

$9.99