5x30mm and 5x31mm inserts are compatible with small opening vials including:
8mm screw-top vials (VT008M-1232 and VT008M-1232A)
11mm standard crimp-top vials (VT011-1232 and VT011A-1232).
6x29mm, 6x30mm and 6x31mm inserts are compatible the following vials:
9mm screw-top vials (VT009-1232, VT009M-1232, VT009M-1232A)
Wide opening 10mm screw-top vials (VT010M-1232, VT010M-1232A)
11mm large opening crimp-top vials (VT011L-1232, VT011LM-1232, VT11LM-1232A)