These polypropylene straight-sided vials are for use with the AS-40 or AS-DV autosampler. Filter caps are molded of Polyethylene and come without a filter. Superior cap design aligns perfectly into top of 0.5mL vial so the cap is always straight.

This product is manufactured by Environmental Express. It is a direct replacement for Dionex OEM #: 042014

Pack includes 250 vials and 250 plain caps without filters.