20mm USA Glossy Flip Cap Vial Seals, Royal Blue, Bag 1000

20mm ROYAL BLUE USA Glossy Flip Cap Vial Seals - 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 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. To see an image of this Superior Flip Caps feature - CLICK HERE

Sold only in bags of 1,000