Alkon Corporation introduces its new line of DOT-approved push-in air brake fittings. Made of rugged forged brass, these fittings are specifically designed for heavy duty trucks and trailers. The fittings can connect and disconnect without tools, and feature self- contained assembly, floating tube support, and secure tube retention. The entire line meets DOT FMVSS 571.106 ' SAE J1131 Air Brake Performance Specifications.