Clamps up to 25mm plastic pipe for repairs without draining the system or turning off the water supply. Use this squeeze off tool on your next plumbing task to temporarily prevent water from passing through a plastic or rubber pipe. It's useful while working on heating systems and with temporary water supplies on construction sites. This tool is especially handy when you want to work on repairs without draining the system, which will save you precious time. You also won't need to turn off the water supply, making it convenient to use if you're installing sinks or appliances. This device is capable of clamping pipes with diameters of up to 25mm. It's mechanically operated so you don't have to worry about maintenance or running out of power. Simply insert the pipe between the stops and rotate the top bar. It's easy to use in-line as it doesn't have any loose parts. Ideal for repairs without draining the system or turning off water supply. Clamps plastic pipes up to 25mm. Mechanical operation. This Hand Tool Can Be Used To Temporarily Prevent Water Flow And Isolate MDPE, Polybutylene And PEX Pipes Or Rubber Pipes Up To 32mm Without Damaging Them. This Is Not To Be Used With Copper Or Any Other Metal Pipe. With a small adaptation, can be suitable for use with Speedfit / Hep20 / Polypipe 10mm / 15mm / 22mm. There is no power required to use this tool. Simply insert the pipe in between the stops and rotate the top bar to isolate pipes. Ideal clamping tool for MDPE plastic pipes. Can be used with pipes already in place, simply remove the lower bar, put the tool in place and then reinsert the lower bar to start clamping. This is useful while working on heating plumbing systems and with temporary water supplies on construction sites or other projects.