RS-7-1H

Solid laboratory black rubber stoppers stay pliant over a long period and withstand laboratory conditions without hardening. Stoppers retain resiliency even after repeated autoclaving. Each stopper has its size in raised figures on top. Contain some sulfur. Autoclavable.

Standard size number 7
Top OD 37 mm
Bottom OD 30 mm
Height 25 mm
Color Black
Material Rubber