PATIKIL 6 Inch-7 Inch Backdraft Damper 1 Set ABS Flexible Airflow Inline Backflow Duct Adaptor Draft Blocker for Kitchen Bathroom Exhaust Fan Blue

Specifications include outer diameter 150-180 millimeter / 5.91 x 7.09 inch, overall size 200 x 200 millimeter / 7.87 x 7.87 inch (L*W).

Advantages include durable Galvanized Iron construction with high hardness and temperature resistance, easy operation via rotary handle, and leak-proof design with silicone rubber ring for easy installation and disassembly.

Installation is easy by sliding the volume damper into the pipe and securing it with a pipe clamp and tape.

This manual volume damper regulates air volume in ventilation systems, widely used in the Heating, Ventilation, and Air Conditioning industry to control airflow and improve system energy efficiency.

Please confirm the outer diameter of the volume damper before placing your order.