AIRTEC DCF Drop Ceiling Support Flange - 

The AIRTEC DCF support flange is easy to use and will make grille/diffuser installation a snap. The DCF will dramatically increase strength and performance for lay in type celing applications by transferring weight onto T-bars. This will prevent tiles from sagging over time.

This item can be used with any of the larger MV size diffusers or MXE return grilles.

Length: 23 5/8"
Width: 12"
Height: 2"
Hole: 9 1/2"