Rinse/Waste Vials with Diffusion Caps, 4mL, Set of 12. Snap Plug, Starburst 8mm, Clear Low Density Polyethylene Pack of 1000. Snap Top Vial Cap 11mm Clear Polypropylene 10mil PTFE Pack of 100. Vial Cap & Septa 10-425 Black Cap PTFE/Silicone/PTFE Septa, Pack of 1000. Vial Cap & Septa 8-425 Blk Closure Red/PTFE White Sil Septa.065"1000PK.