Reed Oilers are the best designed tools for stopping flow in PE pipe. Different models come with a variety of features to handle a wide range of applications and PE sizes. Sliding bar handles make work in tight places easier and increase leverage for tightening. Other features include fine-pitched thread to allow for a controlled, low-effort squeeze; greased fittings to make operation easier and extend life; and aluminum parts to make tools lighter for easier handling. Aluminum castings also withstand varied climate and soil conditions. All tools use positive stops to prevent damage caused by over-clamping. PES1 models feature a stationary bottom bar. The PES2 have an affixed bottom bar, which swings open to fit over any location on the pipe. Note: PES2 models can be used on both CTS and IPS PE pipe by simply changing the safety stops.