For one motor, 12V or 24V DC. Product Features:For use with Johnson Electric (formerly United Technologies) motors.Black plastic knob with metal insert and set screw, white imprint.Plated steel case 1 3/8 (34.9mm) diameter, 3/8 (9.5mm) long.Mounting stem 7/16 -28 thread, .38 (9.6mm) long.4 blade terminals.
