This items is made to order and is not returnable and order cannot be canceled.
Septa, 20mm, Headspace, Molded Butyl Rubber, Dark Grey. For use in 20mm Crimp Caps, sold separately. MicroSolv Brand. 1000/CS.
Additional Info:
Shaped, Butyl Rubber Septa, Durometer of 55 Shore A, (hardness) and 3.0mm thick. Temperature resistant from -40 ° to 120 °C. Use in Aluminum or Steel Crimp Caps for Headspace autosamplers.
Useful when PTFE is a contaminant or one of the analytes. Supplied in polyethylene bags.
Can also be used as a stopper.