EA Performance Hang-On Power Filter - for Aquariums up to 55 GAL - 220GHP - Not Made in China

Stage one - mechanical: Advanced multi-layered polyfiber floss traps micro & macro organic particles and foreign debris Stage two - chemical: Super-activated carbon granules absorbs many disolved contaminants, odor, impurities, and discoloration Stage three - biological: Hi-flow bio-sponge promotes colonization of beneficial bacteria essential to a healthy aquatic environment. Porous, biological sponge promotes beneficial organisms colonization. Includes no-mess cartridges and sponges, keeps hands dry and clean during cartridge changes. Plug and play design for easy installation and simple maintenance.