This part was inspected by professional HVAC installer. Fully assembled, complete, OEM heat exchanger assembly. Includes primary, secondary, cell panel, coupling box, and side baffles. Fits all 35″ tall 21″ wide, 100 kbtu/h Carrier, Bryant, Payne, ICP, Keeprite, Tempstar, Heil, etc. This part is in good condition. Please see more details from the images attached. Please check images carefully because you will receive the item as pictured. Purchasing used parts you agree with the statement that sometimes hidden defects or malfunctions may occur during installation or continuous use. Most of the parts require specific knowledge and skills to be installed properly. If you don’t have skills or knowledge, you must ask certified HVAC technician to install.