Uxcell 4 inch Backdraft Damper 2 Pcs Ducting Hose Airflow Insert Shutter One-Way Draft Stopper for Kitchen Fans

<div class="div-os-obd"></div>Our return air dampers are suitable for residential and commercial applications and are fit for use in HVAC systems, exhaust fans and ventilation ducts. Whether in your home, office or industrial environment, this damper is a versatile solution for maintaining optimal air quality and temperature control. Durable plastic material, durable performance and waterproof, to ensure reliability, can be used for a long time. Smooth interface and easy disassembly. With gravity shutter flap, effectively prevent the backdraft air flow, it is suitable for use together with solid plastic ducts or flexible ducts. Easy to install, simply slide it directly into your ventilation pipe, and then use the pipe clamp and tape for a secure fit. This backdraft damper is only suitable for horizontal installation, it will not function in vertical ducting. Please confirm the outer diameter of the backdraft damper before placing an order.<div class="div-os-obd"></div>

• Material: Polyvinyl Chloride
• Color: White
• Inner Diameter of Interface: 100 mm / 3.9 inch
• Outer Diameter of Interface: 103 mm / 4.1 inch
• Length: 103 mm / 4.1 inch
• Packing List: 2 Pcs x Backdraft Damper