DEUTSCHE HYDRAPRO 1600 PSI ACTUATOR SUITS DISC BRAKES. Advantages of using the 1600 psi over 1200 psi is it will work more effectient earlier by using less dial on the controller to get the correct braking to work on your trailer and the cost is basicly the same as most 1200 psi units out on the market. This device has an in-built compatibility adapter, so no external compatibility device is necessary. High-powered DC motor and quality pump with minimal moving parts. Weatherproof, anodized alloy case protects components from external elements like saltwater, extreme temperatures, and poor road conditions. Anodized, T6-grade extruded alloy housing protects from the elements. Independently sealed fluid tank. Please use 1200 psi unit for Drum brakes.Conformal coating on the circuit board is designed to provide extra protection from moisture.