Penn-Plax Cascade Aquarium Filt-A-Pack

The Penn-Plax Cascade Aquarium Filt-A-Pack is a filter bag that’s filled with carbon and comes ready to use. The Pro-Carb lab-quality activated carbon also contains Pro-Z, zeolite crystals that helps remove ammonia. Together, they help promote a cleaner and clearer aquarium for your underwater buddies. Every purchase comes with 2, 8 oz. packs that are designed to fit inside Cascade canister filters. When you’re all done simply dispose of the filter bag. This is also great for use with aquatic turtles and aquatic amphibians.