20mm USA Glossy Flip Cap Vial Seals, Dark Green, Bag 1000

20mm DARK GREEN USA GLOSSY VIAL FLIP CAPS - for serum vials with a 13mm hole opening and 20mm outside rim-to-rim diameter. No embossed words on cap - completely smooth blank surface complies with new USP regulations effective December 1 2013.

Manufactured in the USA. Aluminum skirt portion of these flip cap vial seals are pre-fabricated with the hole already punched through. This greatly reduces the chance of sharp, jagged metal edges after removal of the plastic flip cap. 

Sold only in bags of 1,000