NIF1012 Features: * Installing the macerator unit behind a wall is made easy by using a proprietary extension pipe * Extension pipe is used with Saniplus and Sanibest products * Pipe is 16"" in length and one side is pushed onto the spigot of the toilet and the other side, slips inside the macerator connection * When using the extension pipe, the toilet bowl should be raised 0.375"" for additional gravity flow toward the macerator box Construction: * Polypropylene construction Dimensions: * Overall dimensions: 5.25"" H x 5.25"" W x 16"" D