Constant Flow CF: Precleans, filters and maintains pressure with constant airflow; 150-200 CFM. Brushed motor standard.
Automatic Pressure Control APC: Maintains pressure with motor control adjusting airflow for optimal pressure Standard with brushless motor.
Intelligent Cab Pressurization ICP: Same motor and control as APC plus LED pressure read-out in cab, low pressure lights and alarms, and data tracking capability