Air brake hose assembly for cross-diameter connections between 1/2" and 3/8" ported brake components Rubber construction for flexibility and sustained performance in commercial brake system environments Inner diameter at 1/2" for higher-volume air capacity in supply-side brake circuit routing End 1 at 3/8" NPT fixed for a secure, non-rotating connection at the supply or valve port End 2 at 3/8" NPT swivel for rotational alignment at the actuator port without hose body stress Weight at 1.10 lbs. with 22" overall length for a robust, ready-to-fit cross-size hose assembly