Models : - 11.1733 : cube pads 16 x 16 po (CU1616) - 11.1734 : cube pads 16 x 18 po (CU1618) - 11.1748 : cube pads 18 x 16 po (CU1816) - 11.1735 : cube pads 18 x 18 po (CU1818) - 11.1736 : cube pads 18 x 20 po (CU1820) - 11.1737 : cube pads 20 x 18 po (CU2018) - 11.1739 : cube pads 20 x 20 po (CU2020)