TRUaire® Return Air Floor Grille, Series: 154R, 24 x 24 in, 1/2 x 2 in Grille Spacing, 1-Way Deflection, 3105 cfm at 1000 fpm CFM Rating, 446.4 sq-in Area, 25-13/16 in Width, 25-13/16 in Height, Steel, Powder-Coated, Brown
- Free area averages over 75%
- Fins set at 90 deg