Pre-formed harnesses and bundles of Nylon Air Brake from Parker Hannifin can reduce installation time by more than 70 percent. Designed for use in tractor, trailer and other mobile air brake applications, time studies show an average chassis harness installation took four employees about 40 minutes to complete. However, with a Parker preformed harness, installation time dropped to 10 minutes and only one employee was required to complete the install. It comes in sizes 1/8" O.D. up to 3/4" O.D. and has a maximum working pressure of 150 psi. It can operate in temperatures as high as 200 degrees F.