FDUA71VF MHI Starter and Return Air Set

Polyaire Model DG-FC Door Relief Grilles are designed for use indoors where constant air transfer is required along with non-vision (sight proof).

Universal outlets or Double Deflection Grilles are generally used in sidewall applications. They consist of two separate rows of individually adjustable vanes - front and rear.

Universal outlets or Double Deflection Grilles are generally used in sidewall applications. They consist of two separate rows of individually adjustable vanes - front and rear.

The Polyaire PSB Swirl Diffuser has fixed spiral blades that create rotational as well as axial, tangential and radial air movement. 

MDO- Plastic Clip Kit 4 Way Outlet