Eheim Wet/Dry Filter Model 2229

No holes to drill in your aquarium, no complicated plumbing, easy-to-install wet/dry canister filter Breaks down ammonia - 73 percent faster, nitrite - 67 percent faster for a healthy aquarium environment Water output pulsates to achieve a wavelike movement EHEIM professional Wet/Dry Canister Filters offer efficiency surpassing that of traditional trickle filters. The water movement within the filter is bidirectional, allowing for extended contact time between bacteria colonies, oxygen, and toxins, which are thus processed more rapidly than in a traditional filter. For use with Ehfisubstrat media.Model 2227 Designed for aquariums up to 92 gallons, circulates 145 gallons per hour at 25 watts with 2 media containers that hold up to 4.9 liters (165 oz) of media.Model 2229 Designed for aquariums up to 158 gallons, circulates 145 gallons per hour at 25 watts with 3 media containers that hold up to 7.3 liters of media.