Three green aquarium co-op Easy Flow Sponge Filter boxes are displayed side by side, labeled as Nano (5 gallons), Medium (20 gallons), and Large (40 gallons), with illustrations of each filter on the front.
The image shows a green box labeled BLACK COLOR COMPONENTS. It describes an Easy Flow Sponge Filter Upgrade Kit with illustrated instructions and diagrams for assembling and installing the filter in an aquarium.
Select options This product has multiple variants. The options may be chosen on the product page

AQUARIUM CO-OP EASY FLOW SPONGE FILTER BLACK FINE

$9.99$14.99

AQUARIUM CO-OP EASY FLOW SPONGE FILTER UPGRADE KIT

$3.99
Three green boxes of Aquarium Co-Op sponge filters (Nano, Medium, and Large) are displayed side by side, each labeled with recommended tank sizes and product features for aquarium use.
Green product box displaying assembly instructions and illustrations for an Easy Flow sponge filter upgrade kit, showing how to attach airline tubing and indicating proper installation above the water line for aquariums.
Select options This product has multiple variants. The options may be chosen on the product page

AQUARIUM CO-OP EASY FLOW SPONGE FILTER GREEN COARSE

$9.99$14.99