(W = side to side) (D = front to back) (H = top to bottom)
HA-100.51.025: Total Width: 239mm W (Actual Size), 9-2/5'' W (Approximate Size)
Total Height: 15mm H (Actual Size), 5/8'' H (Approximate Size)
Projection: 43mm D (Actual Size), 1-11/16'' D (Approximate Size)
Center to Center: 224mm (Actual Size), 8-7/8'' (Approximate Size)
HA-100.51.028: Total Width: 335mm (Actual Size), 13'' W (Approximate Size)
Total Height: 15mm H (Actual Size), 5/8'' H (Approximate Size)
Projection: 43mm D (Actual Size), 1-11/16'' D (Approximate Size)
Center to Center: 320mm (Actual Size), 12-5/8'' (Approximate Size)
HA-100.51.034: Total Width: 515mm W (Actual Size), 21'' W (Approximate Size)
Total Height: 15mm H (Actual Size), 5/8'' H (Approximate Size)
Projection: 43mm D (Actual Size), 1-11/16'' D (Approximate Size)
Center to Center: 500mm (Actual Size), 19-3/4'' (Approximate Size)
HA-100.51.039: No Longer Available
Total Width: 1007mm W (Actual Size), 40'' W (Approximate Size)
Total Height: 15mm H (Actual Size), 5/8'' H (Approximate Size)
Projection: 43mm D (Actual Size), 1-11/16'' D (Approximate Size)
Center to Center: 992mm (Actual Size), 39-1/6'' (Approximate Size)

Some Models- No Longer Available