The AIR BRAKE COMPRESSION NUT 1/4" is a practical and reliable product designed for use with nylon or copper air brake tubing. Its all brass construction ensures durability and longevity. This compression nut is DOT compliant and meets SAE J246 requirements, making it a reliable choice for various applications. It fits most makes and models, providing versatility and convenience. Sold individually, this product offers a cost-effective solution for air brake systems. Trustworthy and efficient, this compression nut is an essential component for ensuring the safety and functionality of your air brake system.