Brass Field Attachable 338 B Series Air Brake Adapter, 3/8 Male Air Brake To 0.25 Inch Male NPT, Straight

This adapter is designed for air brake hose lines, and it’s compatible with H105, H115, and H338 hoses. Just make sure your system uses those hose types.

H338 hose is one of the compatible types for this fitting, along with H105 and H115. It's a field attachable design, so you can put it together on site without needing a crimping machine. The body is CA360 brass, which holds up well against corrosion in air brake line environments. Just keep in mind the working pressure is determined by whichever value is lower between your hose size and the hose end configuration, so confirm both before putting it into service.

For tying air brake hose lines into a 1/4 inch male NPT connection, this straight adapter is built to go from 3/8 male air brake to 0.25 inch male NPT.