Pro-Carb Zeolite

Pro-Carb Z is the ideal blend of Pro-Carb and Pro-Z Laboratory-Quality Activated Carbon and Ammonia-Removing ZeoliteCrystals. Pro-Carb Z works to remove harmful chemicals, toxins, odors, discoloration, and other contaminants while giving your aquarium a crystal clear look. Recommended for use in Cascade, and all other hang-on, internal and canister filter systems. 64 ounces.