Brass components not in contact with potable water conform to ASTM B62 and ASTM B584, UNS C83600 -85-5-5-5 (latest revision) or ASTM B584, UNS C84400 -81-3-7-9 (latest revision)
Use with A.Y. McDonald 3/4 and 1 ft inverted plug or ball style curb stops