3 in 1 Biological Internal Fish tank filter Aquarium Filtration oxygen Pump Feature CRYSTAL CLEAR - This fish tank filter with 3-stage of deep filtration is a water circulation system in the aquarium, reducing the number of water changes in the tank and making cloudy water crystal clear. DIRTY VISIBLE - The transparent box design of this fish tank filter allows the black filter sponge to be visible when it attracts dirt. It is easier to check if the fish tank filter needs to be cleaned. Easy to clean. WAVE MAKING - The powerful 400 gallon per hour pump has strong suction power and a strong water flow to create waves, energizing the water in the fish tank and making the fish happy. EASY TO SET UP - Only need to install the water outlet, nothing else needs to be installed. Specifications: Power:20W Water Flow:1500L/h High Lift:5.5 ft (1.7m) Size(L*W*H):8.7*6.8*37cm Suitable for:75-200 Gal. Tank