Material: Aluminum
Size( W×H): Combine with design sizes
Accessories:
N2 Nylon Filter Netting, R3 Aluminum Alloy Filter Netting                                                  
Feature:
Model RY is in the form of inverted-A louver, not only apply to return air system, but also has a sight-proof core design, widely used in places where light is not permitted to penetrate through.

Having the certification of ISO9001:2008