This is an OEM replacement control board for select Dometic or Duo-Therm Penguin and Blizzard Air Conditioners. Designed for single zone use, offering cooling and furnace control. The control board is the brain of the air conditioning system, communicating the settings from your wall thermostat to the A/C and the furnace. Compatible with Dometic Air Conditioners: 641915, 641916, H541915, H541916

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov