Marketing InformationThe HoldRite® #117 Series no hub fitting restraints are designed to reinforce no hub cast iron installations in accordance with the installation instructions of US cast iron soil pipe manufacturers and the 2006 CISPI installation handbook. The #117-3BP thru #117-8BP (3 to 8 in pipe size) restraints retain a blind plug onto the adjoining pipe. Both stainless steel bands must be tightened to 60 in-lb minimum. When installed correctly, these restraint brackets achieve a safe thrust pressure rating equal to 50 ft head of water pressure.