The Aire Technologies Series 50 10x6x6 in. 90 Deg Boot Steel Part #A50EA0610G06L6F is a combo fire smoke damper made of galvanized steel, with a height of 18 inches. This damper is designed for HVAC systems and is manufactured by Aire Technologies, known for producing quality HVAC products. The specific dimensions of 10x6x6 inches and the 90-degree boot shape make it suitable for certain installation requirements. The silver color adds a sleek touch to its appearance, making it a functional and aesthetically pleasing addition to HVAC systems.