AquaClear 20 Zeo-Carb Insert A-599

AquaClear 20 Zeo-Carb Insert A-599 For AquaClear 20 and "Mini" Combines activated carbon and ammonia remover in one Removes toxic ammonia, odours, discoloration and impurities Immense surface area for beneficial bacteria to populate For FRESH WATER USE only AquaClear 20 Zeo-Carb Filter Insert combines Activated Carbon and Ammonia Remover to remove odors, discoloration and impurities in freshwater aquariums. Exclusively designed for use in the AquaClear 20 Power Filter, the insert prevents the build up of toxic ammonia and nitrite reducing stress on fish. Net Weight: 1.9 OZ AquaClear 20 Zeo-Carb Filter Insert for 5-20 Gal. Aquarium.