Therwen 4 Inch HVAC Manual Airflow Balancing Damper Galvanized Steel Inline Duct Regulator with Sleeve for Ventilation System Dryer Vent Range Hood Fan Air Duct Pipe Control Connector

아마존 달러(USD) 가격을 각 날짜의 환율로 원화 환산해 표시합니다. 현재 환율 $1 = ₩1,463 (2026-07-25 기준)

상품 특징

• Suitable Size: the bent end of the air duct damper measures about 3.87 inches / 9.84 cm in diameter, while the other side is about 7.01 inches/ 17.8 cm, and the height is about 6 inches / 15.24 cm; The size is suitable for inserting into standard 4 inch ventilation ducts, making it convenient for most ventilation systems
• Galvanized Iron Material: the 4 inch vent duct damper is made of quality galvanized iron, featuring high hardness and good high-temperature resistance; It is not easy to deform or corrode and can effectively resist moisture and fading, allowing the air duct damper to be utilized for a long time
• Airflow Balancing Function: this HVAC damper is a simple manual damper wrapped in a galvanized sheet metal sleeve; Each duct branch can be fitted with a damper to regulate airflow by adjusting the internal plate, helping redirect air to specific areas in the house; Please note that this 4 inch damper is designed for airflow balancing rather than complete air sealing or termination
• Easy Installation: simply slide the air duct damper into the pipe and fix it in the desired adjustable position; Then cover the seam with tape to complete the installation; Sealing the connections with duct sealant is also recommended to reduce air leakage and improve HVAC system efficiency
• Wide Applications: : the 4 inch HVAC damper can be utilized in many ventilation scenarios, including air conditioning systems, dryer vents, exhaust ducts, range hoods, heating systems, fans, and other residential, commercial, or industrial HVAC applications, making it a practical airflow control tool