Aqueon
Aqueon 6082 QuietFlow 30 Power Filter, 200GPH
Fluval
Fluval 107 Performance Canister Filter, up to 130 L (30 US Gal) - PetsandPonds A440
Fluval
Fluval U2 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A470
Fluval
AquaClear A600 Fish Tank Filter - 10 to 30 Gallons - 110v
Zoo Med
Zoo Med Nano 30 External Canister Filter
Tetra
Tetra Aquarium Power Filter, Whisper EX30 for 20-30 Gallon Fish Tanks
Tetra
Tetra Aquarium Power Filter, Whisper 10-30 Gallon Fish Tanks
Tetra
Tetra Aquarium Power Filter, Whisper 20i for 10-30 Gallon Fish Tanks