AirMate® Return Air Filter Grille, 

Series: 170 FF, 

16 x 25 in, 

24-15/16 in Duct Height, 

27-5/8 in Overall Length, 

1-5/8 in Overall Depth, 

40 deg Deflection, 

1/2 in Blade Spacing, 

Steel, 

Bright White