This powerfully designed filter offers a top-sealing gasket for a strong seal with an easy-to-remove lid for access to media baskets - just lift up for easy removal. Water flows through, not around, media layers for total mechanical, chemical and biological filtration. A quick-prime button fills the filter chamber with water for self-priming startup, while a quick-release valve block shuts down water flow immediately and separates from the motor housing for quick, spill-free filter maintenance. Available in 3 sizes: 160 GPH (for aquariums up to 30 gallons); 220 GPH (for aquariums 30 to 55 gallons); and 360 GPH (for aquariums 55 to 100 gallons). Compatible with Rite-Size Filter Cartridges. Clean, sparkling water is the mark of a healthy, thriving aquarium. These include tank size, individual maintenance habits and fish population. Whatever your individual needs, Marineland has the filtration products you need to deliver on-target, advanced filtration.