Use when air supply lines come directly from the compressor with no other valve in the line. Comes with a built-in shut-off valve and therefore cannot be used on inflator gauges. Combination 1/4" Female NPT chuck with 1/4" I.D. hose barb. 150 P.S.I. maximum air line pressure. WARNING: Handling the brass parts of the product can expose you to Lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov Wash hands after handlin -