Grainger stocks an impressive brass air brake connector selection so you can find the precise sleeve, union, tee, nut or other part in the tube size you need. Grainger offers one-piece fittings that are reusable and field serviceable. The quick-connect models offer a fast means of assembling nylon air brake assemblies. These quick-connect options can be used on all brake systems except in extreme temperatures or where battery acid can drip on tubing. Shop by brand, style and price to find the exact brake connector you need.