Hydor's Professional 350 Canister Filter is designed for modern aquarium keepers; with intelligent design for efficiency of space and performance and more versatility than other canister filters. The professional series is based on Japanese models with a compact; rectangular footprint and tight fitting baskets for max performance with no water bypass. Each Professional Canister Filter contains an easy to use built-in priming pump; and features an efficient internal motor and added soundproofing to eliminate vibration and noise-features to set them above the rest. Model 350 also comes preloaded with all necessary media including a high density mechanical sponge for fine filtration; sintered ceramic rings for biological filtration; and a highly porous mechanical sponge to remove larger debris and waste in aquariums up to 100 gallons. Includes media trays; telescopic intake; spray bar return and fully adjustable shut-off valves. For complete product information; download the instruction manual.