Product Information Material: Brass Male Thread: NPT Select a Product Part NumberMale Thread SizeLengthFlow ASP3104-901/2"2"50 SCFM ASP3103-403/8"1-3/4"30 SCFM ASP3103-903/8"1-3/4"30 SCFM ASP3101-401/8"1-1/4"10 SCFM ASP3102-901/4"1-1/2"20 SCFM ASP3104-401/2"2"50 SCFM ASP3102-401/4"1-1/2"20 SCFM