Electronic Slide Control w/ Black face is designed for use with the Hurricane 1100, 2100 or 3100 Series A/C Heat & Defrost Systems This control has 3 speed blower switches and 2 slides to operate the servo motors for smooth and infinitely variable defrost and heater valve operation. Push button A/C switch operates compressor and allows blending of A/C & Heat functions for dehumidified Defrost control. Includes: Control, Wire Harness & Electronic Bypass Heater Valve. Dimensions: 8" wide x 2-1/4" ...