Gen IV SureFitTM System Features: - Fly-By-Wire fully electronic servo controls with no cables or capillary tube to route. - Infinite “just right temperature” air blending - Infinite blower fan speed adjustment - High volume dehumidified defrost mode - Separate high capacity aluminum plate and fin cooling coil - Copper/brass CuproBrazeTM parallel flow heater coil - Mounts behind the dash - Deluxe Kit includes new ProLine 3-leverpanel - Standard Kit includes 3-knob controls - Flat steel firewall cover panel