1/2" Jet Swet single temporary plumbing plug tool Solder without draining the entire water system Jet Swet in-line temporary plugs hold up to 65 Lbs. of pressure immediately! Works on most pipe types including copper, pvc, black, steel and stainless pipe Includes the 1/2" Jet Swet Plumbing tool to plug 1/2" plumbing lines. Solder right over the tool to repair faulty valves, pinhole leaks, regulatory valves and joints