Caps, Screw Top, Solid, with an ultra-clean, Silicone Rubber / PTFE liner, in "knurled", closed Blue Caps. For use with 9-425mm thread,12x32mm autosampler vials. MicroSolv Brand 100/PK.
Solid top turns 9mm screw thread autosampler vials into storage vials. The liner has a silicone rubber backing to the sample facing PTFE which allows for a much better seal for volatile compounds or for solvents than PTFE only liners.
These caps are matched to work with our MicroSolv, AQ and RSA brand vials.