Air Diffusers

The evolution of air diffusion.


MV Classic Air Diffusers

The one-piece grille, damper, box. Quickest install in the trade.



MV Retro Air Diffusers

One-piece grille, damper, box. The look and feel of a traditional antique cast iron grille.



Limited Clearance Diffusers

Grille/damper for side or top entry to conventional sheet metal box.



TuffBox Register Boxes

Tough rough-in polymer register boxes for HVAC systems. Strong. Silent.

Ceiling Support Flanges

  • Designed for new construction. Our RCF flanges can be fastened to rough framing.

Installation Instructions: