Material: Aluminum

Size( W×H): Combine with design sizes

Accessories:

N2 Nylon Filter Netting, R3 Aluminum Alloy Filter Netting, D1 Opposed Blade Damper

Feature:

RG-B type is constructed of blades mesh of gauge 15.

RG-B type ont only offers big air transfer, but also good return air effect.

RG-B is normally installed on ceiling, also can be used ai supply tuyere.