Water Gauge: Square Pattern, Series: 20-350, 5/8 in Sight Diameter, 1/2 in Connection, NPT Connection, 12 in Length, 400 psi Working, Rough Bronze, Apollo #2035003 Standards/Approvals: ASTM B16 Body ASTM B16 Stem ASME Specified ASSE Specified CSA Certified Canadian Registration No. 0F6616.5C PROP65: Cancer and Reproductive Harm 2035003