The Brass Air Brake Male Connector 1/4" Tube x 3/8" Pipe is designed for use in air brake systems serviced by SAE J844 nylon tubing. Constructed from high-quality brass, it meets DOT FVSS571.106 air brake specifications and is marked for compliance. This fitting facilitates secure connections, making it ideal for various commercial and industrial applications where reliability and durability are paramount. Its 1/4" tubing outer diameter ensures compatibility with standard tubing sizes for efficient integration.