Epic Tools Ltd is offering a new. Nerrad Jet Swet Pipe Isolation Tool Set – 2 Piece 15mm & 22mm. Features on the item. The Jet Swet is designed to temporarily isolate the flow of water in pipes to allow you to work on the removal, refitting or soldering of valves or fittings. Can hold up to 75 PSI of pressure allowing heavy duty work to be carried out. The Jet Swet gasket is a unique EPDM / Silicone composite, made to withstand the intense heat of soldering and brazing. Jet Swet allows the engineer to work on live pipework as soon as they arrive at the job. No more waiting for the water to drain.