Vials with Poly-Seal Screw Cap, Ace Glass Incorporated
USP Type 1 borosilicate glass vials feature Poly-Seal cone-lined closures which are molded in a premium grade, natural low density polyethylene to help prevent deforming and stress cracking.
Inverted cone liner is designed to provide an excellent seal and offer exceptional torque retention, even at low application torque.
: Poly-Seal Screw Caps are included. The caps are not attached, but are packed with the vials in sturdy hand-out shelf boxes.