Tetra Whisper Power Filters

Quiet, dependable, whisper power filters now incorporate the triad system for superior 3-way filtration! Check out some of their impressive features: mechanical filtration - the easy-to-use, thick, high quality floss bio-bags quickly trap particulate matter. Biological filtration - the new bio-foam's intricate structure supplies plenty of surface area for optimal biological filtration that rapidly eliminates toxic ammonia and nitrites. This separate biological media lets you change the bio-bag without losing the important aerobic bacteria. The bio-bag's aerobic frame also gives additional bio-filtration. Chemical filtration - the bio-bag's ultra-activated (tm) carbon removes dissolved contaminants, chlorine, odors, and numerous other pollutants. You can also add more media to suit your tank's needs. High quality magnetic impeller - the only moving part! Provides silent, long- lasting, reliable performance! Specially designed reservoir - prevents back-siphoning in the event of a power failure. Unlike other filters, this feature allows the whisper to immediately start up again when power is restored. Flow control knob - permits for slower flow rates at feeding time to keep food out of the filter. Suitable for freshwater aquariums up to 20 gallons in size (105 GPH).