Marineland Penguin Power Filter Cartridge Aquarium Filter Insert – Size C – 3 Pack

• Each preassembled rite-size and emperor cartridge has a patented ribbed back that evenly distributes carbon for maximum water
• Highest grade magnum carbon removes more pollutants
• Fits penguin 170 200 330 & 350

INGREDIENTS: The Heavy Duty Emperor Filter Cartridge Delivers Two Full Ounces Of Activated Carbon Filtration And 45% More Mechanical Filter Area. Larger Polyfiber Filter Pad Traps More Dirt.