When replacing the valve stem connection hoses on the Meritor Tire Inflation System (MTIS) by PSI, it is recommended that the proprietary MTIS hose be used to maximize the performance of the system.
The PSI hose delivers 95% of available air pressure to the tires. The amount of air carried to the tire is critical to the performance of MTIS. Keeping a maximum flow of air from the automatic inflation system to the tires ensures that the recommended air pressure set by the fleet is maintained during operation.
Pressure Systems International has added clearly identifiable markings to the flexible valve stem connection hoses of the MTIS by PSI.
A video at www.youtube.com/watch?v=_JA5XtL5RLU shows differences in the amount of air pressure flowing through an MTIS hose and an aftermarket replacement hose.