The Series 1000 provides joint restraint between PVC pipe and ductile iron fittings. The device works with fittings with either mechanical joint ends or push-on, and it may be installed on new or existing systems. Mechanical joint restraints totally eliminate the need for thrust blocks. The restraints have internal serrations that lock onto the pipe and give 360 degrees of contact and pipe wall support. These restraints may be used with PVC pipe made to either a CIOD or IPS OD diameter regimen.