Caps, closed screw top, solid, with a silicone rubber / polypropylene liner, in "knurled", black caps. 1000/CS.

Polyfluoroalkyl substances (PFAS) can be tested or stored in our autosampler vials using these caps. The silicone rubber (for optimal sealing), and polypropylene fitted liners (for inertness) are excellent for storage of your sample before or after chromatography. These caps do not contain PTFE. For more information on PFAS, Click HERE .

Use with MicroSolv, AQ™ or RSA™ branded 9mm screw thread autosampler vials for best performance and sealing.

Click HERE for smaller pack quantities.