Marineland Penguin Power Filter Cartridge Aquarium Filter Insert - Size B - 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
• Fit penguin 125 & 150

INGREDIENTS: Delivers Two Full Ounces Of Activated Carbon Filtration And 45% More Mechanical Filter Area. Larger Polyfiber Filter Pad. Highest Grade Magnum Carbon Removes More Pollutants.