HARCO 821025 10" Valve to Pipe Restraint B . Fits push-on valves for IPS PVC pipe made by American Flow Control/Waterous, AVK, Clow, Kennedy, Matco-Norca, M&H and Nibco. Can eliminate need for concrete thrust blocks. Price is for (1) set inculding (2) clamps and bolt sets, and restraint rods with nuts as required. Grip Ring bolt torque: 100 ft-lbs.