Hydro-Sponge Filter I--HS910 - Aquarium Technology, Inc.
HYDRO-SPONGE FILTER V HS950 (125GAL)    For aquariums up to 125 gallons in size. Provides biological   and chemical filtration. Easy to clean. Can be used with a  power head. Raised off bottom. Sponge size 4 x5 3 3/4. Size including   the base, step extension, and lift tube is about 11'.    HYDRO-SPONGE FILTER IV HS940 (80GAL)    For aquariums up to 80 gallons in size. Provides biological   and chemical filtration. Easy to clean. Can be used with a  power head. Raised off bottom. Sponge size 4x 4 3/4. Size including   the base, step extension, and lift tube is about 11'.    HYDRO-SPONGE FILTER II HS920 (20GAL)    For aquariums up to 20 gallons in size. Provides biological   and chemical filtration. Easy to clean. Can be used with a  power head. Raised off bottom. Sponge size 4 x 2 3/4. Size including   the base, step extension, and lift tube is about 11'.    HYDRO-SPONGE FILTER I HS910 (10GAL)    For aquariums up to 10 gallons in size. Provides biological   and chemical filtration. Easy to clean. Can be used with a  power head. Raised off bottom. Sponge size 2 x 3 3/4. Size   including the base, step extension,   and lift tube is about 9'.    HYDRO-SPONGE FILTER III HS930 (40GAL)    For aquariums up to 40 gallons in size. Provides biological   and chemical filtration. Easy to clean. Can be used with a  power head. Raised off bottom. Sponge size 4 x 3 3/4. Size including   the base, step extension, and lift tube is about 11'.