Technical features:

1. Made of aluminum profile, the surface is oxidized, and it can also be anodized, electrostatic sprayed, baked and so on according to the decoration requirements.

2. Suitable for return air occasions such as general offices and hotels, with fixed blades and waterproof design.

3. The effective ventilation area of the waterproof louver air return port is about 38%.

4. Accessories can be added: R2 nylon filter, R3 aluminum alloy filter, R9 stainless steel and insect-proof net.