The SunSun HW-302 3 stage external canister filter is ideal for tanks up to 75 gallon. It handles up to 264 gallons per hour. The SunSun HW-302 includes filter pads, hoses and all the parts you need to get started. The three flexible media trays allow you to add other filtration media such as SunSun’s activated carbons ceramic rings or bio-balls (each sold separately) to achieve excellent mechanical, chemical and biological filtration. The HW-302 canister filter also has a convenient self-priming pump that eliminates the need for manual siphoning.