REPLACEMENT FILTER CARTRIDGE: Fits Marineland Penguin PRO Power Filters 100, 275 and 375; also fits the original Penguin Power Filter 150
EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless
THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber
Chemically filtered through Black Diamond Premium Activated Carbon
BIO-Wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth
