The SPEEDAIRE - 30E660 is a hose coupling with a plug-type quick-connect design for tool-free connection and disconnection of hoses or equipment. It is used on the end of a hose or tool inlet and is compatible with Industrial Interchange standard couplers. The coupling operates with a male hose fitting of 1/4 in size and features body and coupling size: 3/8 in nominal. Its steel construction with a zinc-plated finish provides a zinc-plated corrosion- surface. This plug-type coupling does not include a valve and is intended for sealed connections in pneumatic, hydraulic, or general fluid applications. Key Features: - Body and Coupling Size: 3/8 in nominal diameter - Hose Fitting Size: 1/4 in male connection - Connection Type: NPT thread with 1/4"-18 size - Material: Steel with zinc plating finishing - Seal Material: Buna-N - Maximum Working Pressure Rating: 300 psi at 70°F - Temperature Range (Ambient): -40°F to 150°F - Interchange Type: Compatible with Industrial Interchange standard - Standards Compliance: Meets ISO 6150 and MIL-C-4109F specifications