The HOLDRITE® #117-L Series NO-Hub Restraints are designed to reinforce no-hub cast iron installation at 45 deg or 22 deg change of direction in accordance with the installation instructions of U.S. Cast iron soil pipe manufacturers CISPI designation 310-11 and the 2006 CISPI installation Handbook. The #117-10L (10 in size), #117-12L (12 in size) & #117-15L (15 in size) retain the 45 deg elbow onto the adjoining piping. When installed correctly, these restraint brackets achieve a safe thrust pressure rating equal to 50 ft head of water pressure for 10 in models and 40 ft for 12 to15 in. Models ending in ''-G'' represent ''galvanized''. Clamps to be torqued to 60 ft/lbs.