By Heather Burlingame, Senior Production Editor | September 28, 2010

Parker crimp fittings and air hoseParker's all-brass permanent 25 Series Crimp Fittings work with the company's 271 Air Brake Hose. The combination is ideal for tractor-to-trailer lines, axle chamber lines and tractor service lines. Available fitting configurations are male NPTF (01), female SAE 45-degree (08) and adapter-style swivel (7B). The hose has a synthetic rubber inner tube surrounded by one or more layers of fiber braid and synthetic outer cover.