DB 3.1 Single block, test tube comb., 6/12/13/25 mm

Used for test tube combination (6 mm / 12/13 mm / 25 mm)
Pore size: Ø 8.3 / Ø 13.9 / Ø 26.2 mm
No. of holes: 6 / 5 / 3
Hole depth: 48.4 / 48.4 / 48.4 mm
Dimensions (W x D x H): 95 x 76 x 51 mm