Clean Vial found in: Clean Snap Clear Vials with 0.125 in. Septa, Vials, Pre-Cleaned and Assembled, EPA/VOA Vials, 50 Position Vial Rack, Clear.. vials are processed in the same manner as Certified vials and come with all the features of Certified vials, but vials are not barcoded, and CofA is not included.