2 Drawer Den for Aquaclear 100.  Holds the following powers: -0.25 to -6.00 in 1/4 D steps and -6.50 to -12.00 in 1/2 D steps.  +0.25 to +6.00 in 1/4 D steps and +6.50 to +8.50 in 1/2 D steps.  Powers doubled up in bins for +5.00 to +8.50.Dimensions: W 12 3/8", H 5 13/16", D 12 3/16