Sizes:

Code 0406 - 1/2 x 3.1/2" x 530 mm - Hole 37 mm

Code 0420 - 1/2 x 3.1/2" x 470 mm - Hole 37 mm

Code 0408 - 1/2 x 3.1/2" x 450 mm - Hole 32 mm

Code 0409 - 1/2 x 3.1/2" x 518 mm - Hole 32 mm