3 Pack Performance Replacement Cartridges: Fits Aquarium Masters Model 10/30 & Deep Blue Professional Biomaxx 10 Power Filter

DISPOSABLE MULTI-STAGE CARTRIDGE! Easy to use disposable. Each box contains 3 cartridges. Media-grid ensures even distribution of carbon granules throughout the cartridge for maximum filtration & flow. High-strength plastic frame for increased cartridge rigidity. No-mess cartridge handle & single-piece construction keeps hands dry & clean during cartridge changes. Stage one – mechanical: Advanced multi-layered polyfiber floss traps micro & macro particles and foreign debris. Stage two – chemical: Super-activated carbon granules absorb many dissolved contaminants odor impurities and discoloration. Stage three – biological (sold separately): High-flow bio-sponge promotes colonization of beneficial organisms essential to a healthy aquatic environment.