The Holdrite® #117-12X10WR or WR-G series no-hub restraints for reducing wyes, are designed to reinforce no-hub cast iron instructions in accordance with the installation instructions of the U.S. cast iron soil pipe manufacturers, CISPI designation 310-11 and the 2006 CISPI Handbook. Models ending G represents galvanized. All pipe clamps must be torqued to 60 ft 11bs.