Keenan and Meier manufactures & delivers high quality aluminum HVAC round and rectangular dampers at competitive prices. Our dampers are all engineered to combine strength and durability in the use of providing controlled airflow against drafts. Our dampers are available in several styles to satisfy your engineering specifications. Our louvers will meet all of your needs and specifications. In addition to our damper product line, you may also order our dampers with motorization capabilities. Heating and air conditioning are just some of the common uses for our products.