#13 stopper PTFE
#9 stopper PTFE; Stopper, Flask Length, PTFE, Size
#38 Stopper, Safe-Lab, PTFE
#27 Stopper, Safe-Lab, PTFE
#22 Stopper, Safe-Lab, PTFE
#16 stopper, Safe-Lab, PTFE
#16 stopper flat head
#13 stopper flat head
