Capacity：1/2"~8" Best designed tools for stopping flow in PE pipe, with capacities ranging from 1/2" to 8. The PES1 series features a stationary bottom bar while the PES4 and PES2 series utilize an affixed bottom bar that swings open to fit over any location on the pipe. Additional features include aluminum parts for lighter weight, sliding bar handles for working in tight places, fine-pitched thread for a controlled, low effort squeeze, and grease fittings for easy operation and long life. All tools use positive stops to prevent damage caused by over-clamping. The PES2PC160 features CTS specialized stops for Pressure Class 160 tube. PES1 and PES2 models can be used on both CTS and IPS PE pipe by simply changing the safety stop discs, a feature sure to please utility contractors. The PES8 series has a capacity of 3” to 8”, and is available in manual or hydraulic models. The PES8M uses two stops providing 12 different pipe/SDR combinations. The PES8H includes a hydraulic pump, pressure gauge, and saddle clamps. An optional Flow Control Valve (#94317) permits controlled release of the upper jaw.