2-Piece 0.8/1.6 GPF Dual Flush Elongated Cossu Toilet in White w/Concealed Tank (2x4 Construction) and Dual Flush PlateIncluded in this complete wall hung toilet kit is the DXV Cossu Wall Hung Elongated Toilet in White, the Geberit Sigma 1. 6 . 8 GPF In Wall Tank System for 2 x 4 Construction and the Geberit Sigma01 Actuator plate in Alpine White. The sophisticated Geberit System makes installation quick and easy and maintenance practically nonexistent. Geberit systems improve the look of any bathroom by hiding the unsightly toilet tank and results in more usable