Superior Quality 20mm Flip Top Aluminum Seal. Plastic cap flips off to reveal an aluminum seal with a hole, exposing the center of the rubber stopper. By Med Lab Supply, makers of Complete Serum Glass Vial Packaging Component Systems.
Flip top aluminum seals for serum vials. Plastic top flips off to reveal aluminum seal with hole. Available in 13mm sizes in a variety of colors. “13mm Butyl Stoppers compatible with 2ML Vials”.
