DB 2.1 Single block for conical tubes, Ø17.1 mm

DB 3.2

DB 1.1 Single block for PCR tubes, Ø7.9 mm

DB 1.3 Single block for VWR microtubes Ø11.1 mm

DB 1.5 Single block for corning tubes, Ø10.9 mm

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

DB 3.3 Single block for microtube comb., 0.5/1.5/2 ml

DB 4.2 Single block for round tubes, Ø10.7 mm

DB 4.4 Single block for 20 round tubes, Ø13.9 mm