QBG1001 Features: * Filter insert * Material: Zeolite * For hagen aqua clear 20, 30, 50, 70 and 110 Options: * Available in several sizes Color/Finish: * Color: Aqua clear Dimensions: * Dimensions: 1.38"" H x 1.88"" W x 2.38"" D * Dimensions: 4"" H x 1.75"" W x 3.75"" D * Dimensions: 5"" H x 1.75"" W x 2.63"" D * Dimensions: 7"" H x 2.25"" W x 6.25"" D * Dimensions: 7"" H x 2.25"" W x 4.25"" D