The C-530 Multi-stage Canister Filter is the solution to canister filtration for a big tank. This revolutionary canister filter is the ideal choice for optimum aquarium 3-stage filtration. These sleek, stainless steel filters are specifically engineered for virtually no bypass. The three stages of mechanical, biological and chemical filtration are accomplished through easy-access stack n' flow filter trays and rite size X filter pads. Other amenities include a valve block for quick shut down and spill-free maintenance, a quick prime button for easy no-mess startup, and a complete package of filter-specific media included for instant setup. Thos canister has a flow rate of 530 GPH and is designed for tanks up to 150 gallons.