The ASSORTMENT-BRASS FITTINGS 50 PCS, DOT, PUSH-IN AIR-BRAKE features high-quality brass construction, ensuring durability and long-lasting performance in air brake applications. This assortment includes various unions designed for easy push-in installation, making it ideal for quick repairs and system upgrades. Compliant with Department of Transportation standards, these fittings are suitable for use in both commercial and industrial pneumatic systems, providing secure and efficient connections.