Geberit 111.255.00.1 Concealed Toilet Carrier Frame with UP200 Dual-Flush Tank For installation in wood or steel stud walls that provide support equal to 6.75-Inch depth For 2-hole wall-hung washdown WC with fastening distance 7.1-Inch (18 cm) or 9.1-Inch (23 cm) Toilet heights 15-Inch - 19-Inch 1.6 GPF Supports up to 800 pounds