All fittings conform to the following specifications
Material: ansi/astm a-197
Dimensions: ansi/asme b16.3, b16.4, b16.39
Threads: ansi b1-20.1
MFG# 511-703HN
California residents: Prop 65 Warnings
Warning
WARNING: This product can expose you to chemicals including Lead, which [is] are 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