Tech performed ESA maintenance on Trane split system. Replaced 20*20*1 standard non pleated filter in hallway with regular filter. Per Brandon, customer prefers media filter. Tech brought 20*25*3. The correct size is 20*20*3. Will need to return to install media filter for previously quoted price. Cleaned indoor coil and drain with water and nitrogen. Found no challenges with indoor unit. Inspected outdoor unit and cleaned carefully with brush due to no outdoor water access on roof. Outdoor unit is clean and free of debris, copper, aluminum and sheet metal surfaces show corrosion due to salt air. Capacitor, amp draws, and refrigerant pressures are within specs. Tech recommends customer clear out all items from HVAC and water heater closet. Boxes and items may block airflow or get wet in case of drain backup. Tech recommends removing items from auxiliary drain pan under air handler to prevent wet items from getting wall or floor wet in case of drain backup. Tech recommends not usin