13mm screw cap

Aijiren’s 4ml threaded sample bottle (13-425) should be matched with 13mm Screw Closures, suitable for Aijiren, Waters, Varian, Shimadzu, PE, Diane and other types of chromatographic autosamplers. The 13mm Screw Closures produced by Aijiren have accurate thread sizes, and the width of the center hole ensures accurate collection by the autosampler. The 4ml transparent screw cap sample bottle (13-425) equipped with 13mm Screw Closures can also be used as a sample bottle and storage bottle.

Screw Cap Vials are universal. Screwing the cap applies a mechanical force that squeezes the septum between the glass rim and the cap. Screw caps form an excellent seal and mechanically hold the septum in place during piercing. No tools are required for assembly.