Coleman-Mach Coleman Mach 08 0034 Adb Cool Only Ceiling Assembly Manual Control Ducted Without Thermostat. This Ceiling Assembly will fit a 14" x 14" vent opening and is most compatible with Coleman-Mach's Roughneck Series Air Conditioner. It is heat strip compatible but a heat strip is not included. Use Heat Strip part #47233-455 for Coleman 4700 Series air conditioners. Use Heat Strip part #9233A4551 for all Coleman air conditioners except the 4700 series A/C units. Features of Coleman-Mach 8330-763 Coleman Mach 08 0034 Adb Cool Only Ceiling Assembly Manual Control Ducted Without Thermostat Fits 14" x 14" vent openings Heat strip ready (not included see long description for compatible heat strips) Easily accessible washable air filters Most compatible with Coleman-Mach's Roughneck Series Air Conditioner Package Contents: Coleman-Mach 8330-763 Coleman Mach 08 0034 Adb Cool Only Ceiling Assembly Manual Control Ducted Without Thermostat Coleman-Mach 8330-763: Coleman Mach 08 0034 Adb Cool Only Ceiling Assembly Manual Control Ducted Without Thermostat