MarineLand Magnum Polishing Internal Canister Filter The Marineland Magnum Polishing Internal Canister Filter uses powerful three stage filtration to ensure water clarity Water polishing option removes fine debris, leaving water crystal clear The Marineland Magnum Polishing Internal Canister Filter filters 290 gallons per hour and is ideal for aquariums up to 97 gallons No priming necessary. The submerged motor means quick and easy setup Dual-chamber media container allows for customizable media  Black Diamond Carbon is included