This Male Elbow is designed for use with nylon or copper air brake tubing and is DOT compliant. The fittings meet SAE J246 requirements and are made of all brass construction. Featuring a pipe thread sealant, this fitting offers several benefits, including providing a no-leak assembly instantly, saving application time and expense, and preventing system contamination. It can be reused up to five times and provides excellent thread lubrication to prevent galling. Sold individually, this fitting fits most makes and models, making it a practical and reliable choice for air brake systems.