CM5310M-18  18 mm Silver Metal Closure, No Septa, Qty 1000  $92.51 
CM5350-18M  18 mm Silver Metal Closure, 0.050" PTFE/Si, Qty 1000  $397.80 
CM5356B-18M  18 mm Silver Metal Closure, 0.060" Blue PTFE/Si, Qty 1000  $343.20 
CM5351TB-18M  18 mm Silver Metal Closure, 0.125" Translucent Blue PTFE/Si, Qty 1000  $405.00 
​CM5354-18M​  18 mm Silver Magnetic (Metal) Closure, PTFE/Red Butyl, Qty 1000  $405.00
CM5001-20ST  20 mm Gray Butyl Rubber Snap on Stopper w/Si Treatment  $132.60


18 mm Metal Screw Thread Caps (Magnetic)
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CM310018F-2346  10 ml Clear Flat Bottom, 23x46 mm, Qty 1000  $207.48 
CM31018F-2346A  10 ml Amber Flat Bottom, 23x46 mm, Qty 1000  $296.40 
​CM31508F-2360  15 ml Clear Flat Bottom, 23x60 mm, Qty 1000​
​​​​​CM320018F-2375  20 ml Clear Flat Bottom, 23x75 mm, Qty 1000  $226.20 
​CM2108FM-2375  ​20 ml Clear Flat Bottom, 23x75 mm with Marking Spot, Qty 1000  $257.40
CM32018F-2375A  20 ml Amber Flat Bottom, 23x75 mm, Qty 1000  $318.08 
​​CM3218FM-2375A  20 ml Amber Flat Bottom, 23x75 mm with Marking Spot, Qty 1000​  $346.32​

18 mm Screw Thread Vials Flat Bottom

CM Science offers a variety of headspace vials to fit your autosampler.  The vials on ​this page are standard headspace vials.  They are 18 mm screw thread vials with flat bottoms.  These types of vials fit Shimadzu, Agilent, Perkin Elmer and Carlo Erba autosamplers.