WITH BIO-WHEEL TECHNOLOGY: BIO-Wheel technology provides wet/dry biological filtration
MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment
COMPATIBILITY: Use with Marineland Rite-Size B Filter Cartridge
SIX SIZES: 100 (for up to 10 gallons), 125 (for up to 20 gallons), 175 (for up to 30 gallons), 275 (for up to 50 gallons), 375 (for up to 75 gallons), 450 (for up to 90 gallons)
