WHOLESALE AIR REGULATOR WITH GAUGE Adjustable from 0 to 160 PSI. Built-in guage with kg/sq.cm and lb/sq.cm measurements. Designed with 1/4"" NPT fitting. ⚠ WARNING: This product can expose you to LEAD, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.