2PCS Internal Filter Sponge Foam, Aquarium Bio Sponge Rolls of Fish Tank Filter Accessories 4.5" x 2" (2Pcs Sponge)Size (L x W): 4.5” x 2“Package included: 2 Pcs internal filter sponge foam rolls.Prevents small fish and debris from getting sucked...

3PCS Aquarium Internal Filter Replacement Cartridge for IF01-B20, Fish Tank Filter AccessoriesSize (L x W x D): 5.4" x 2" x0.8"Package included: 3 PCS internal filter cartridgesPatented multiple-stage biochemical filter plate. Ultra-activated carbon removes odors and discoloration from water.Easy replacement:...

3PCS Aquarium Internal Filter Replacement Cartridge for IF01-B35, Fish Tank Filter AccessoriesSize (L x W x D): 5.7x3x0.4 inchPackage included: 3 PCS internal filter cartridges.Patented multiple-stage biochemical filter plate. Ultra-activated carbon removes odors and discoloration from water.Easy replacement: Just remove...

4 PCS Internal Filter Sponge Foam, Aquarium Bio Sponge Rolls of Fish Tank Filter Accessories 4.5" x 2"Size (L x W): 4.5” x 2“Package included: 2 Pcs internal filter sponge foam rolls.Prevents small fish and debris from getting sucked up...

6 PCS Internal Filter Sponge Foam, Aquarium Bio Sponge Rolls of Fish Tank Filter Accessories 4.5" x 2"Size (L x W): 4.5” x 2“Package included: 6 Pcs internal filter sponge foam rolls.Prevents small fish and debris from getting sucked up...