Performed an air duct cleaning and sanitation on a 4 bedroom 2 system house. All vents and ductwork are clear of dust and debris at this time. Both systems are functioning properly at this time. Recommend duct cleaning every 3-4 years. Thank you for your business! Both specialty filters need to be replaced. Size is 20”x25”x4” Customer paid in advance. Pictures of the water heater included.