inner ring for universal 40mm sample cup, OD 39,9mm, ID 34,2mm, H 24,4mm, set=100pcs, replacement fo

inner ring for universal 40mm sample cup, OD 39,9mm, ID 34,2mm, H 24,4mm, set=100pcs, replacement for SC-4340 (ring+lid), SC-4240 (two rings) and SC-4140 (ring+lid, attention, lid only attached, risk of leakage)