Pre-Filter Repl. Sponge Filter-Max I

Easy-to-install aquarium pre-filter for added mechanical filtrationAttach Filter-Max to powerhead or aquariums filter intake tubeFoam sponge filter traps aquarium debris to prevent filter damageSimple aquarium filter upgrade for under 10 Enjoy added aquarium filtration with the easy-to-install Filter-Max Pre-Filter. Simply attach the versatile pre-filter on powerhead, power filter or canister filter intake tubes to trap aquarium debris before entering the main filter. Foam sponge filter supplements both mechanical and biological filtration. Great for freshwater or saltwater aquariums containing small fish or delicate invertebrates that can be injured by conventional strainer style intake tubes. Includes three fittings (adapters) for vertical or horizontal installation on various powerheads and filter intake tubes.andnbsp;Sponge SizeAquarium SizeSurface area of sponge (Sq. In)Filter-Max I2" x 2-3/4"Up to 20 gallons30.6Filter-Max II4" x 2-3/4"Up to 40 gallons49.4Filter-Max III4" x 2-3/4"Over 40 gallons49.4 Reticulated filter foam for higher flow rates.Please click on "More Information" for instructions.