• 12V DC powered electric-hydraulic pump-style actuator for electronically controlled hydraulic brakes. • Tow vehicle must be equipped with an industry standard electronic brake controller • “Unloading Piston” feature instantly releases hydraulic pressure upon stop of brake signal, eliminates pump-style actuator “brake drag” • Completely sealed unit, approved for marine/submersible applications. • Actuator designed for single or tandem axle applications. • Compact design, measures 3.25”w x 5.75”h x 17.5”l • 1000 psi for Drum Brakes; 1600 psi for Disc Brakes