size: 1/2" NPT male x 1/4" NPT Female ; NPT is an abbreviation of the National (American) Pipe Thread, a U.S. standard 60-degree cone Thread used in North America.pack qty: 2pcs.
Meet NPTF requirement of US, better than NPT thread, could be used as NPT thread, too.
Good raw material brass, high corrosion resistance, low magnetic characteristics and high temperature ductility.
Meet ASTM B584 and ASME/ANSI B16, some parts have DOT certification.
Direct manufacturer sales so bulk orders are acceptable with good price and short lead time.