All metal construction mounting hardware included valve is required for single hole tub fillers (LG6-1RH*, LG6-1MF*,LG6-1TNT*) All brass rough-in valve body to be Installed prior to finish floor integral stops Pfister products are designed and manufactured in compliance with the following standards and codes : IAPMO certified CSA B125 certified ASME A112.18.1 ASSE 1016.