This male elbow fitting is designed for use with nylon or copper air brake tubing and is DOT compliant. The fittings meet SAE J246 requirements and are constructed entirely of brass. Several fitting styles feature a pre-applied pipe thread sealant that provides no-leak assembly instantly, saving time and expense. The sealant will not contaminate systems like tape shredding or liquid sealant washout and can be reused up to five times. Additionally, it provides excellent thread lubrication to prevent galling. Sold individually, this fitting fits most makes and models.