1/4"" Female NPT x 1/4"" Male NPT with Gage, To regulate air pressure to air tools from full flow to complete shut-off, Use as shut-off valve for air and non-corrosive liquids, Maximum 150 PSI, SCFM 5, 100 PSI, Temperature range: 40 degrees F to 250 degrees F, Length: 4, Width: 3, Height: 1, 5, SKU: ISN5437