16745-0 Size: 46.96 oz Features: -Pond clarifier.-Adds ferric oxide to the original Chemi-Pure formula to also remove phosphates and silicates.-Complete choice for filtering any kind of aquarium.-Capacity: 46.96 oz. Dimensions: -Weight: 2.5 lbs.-Dimensions: 7.25'' H x 6.5'' W x 6.5'' D.