White Snap Cap For HCL Item 5726N and 5727N, Fits 13 and 16 dram vials. When caps are used with the Friendly and Safe Medicine Vials they meet specific requirements of the United States Pharmacopeia 31/National Formulary 26 (USP31/NF26) as defined in the Chapter 671 “Containers-Performance Testing.” Therefore, pharmaceuticals which require “light” and “tight” characterizations afforded by these monographs may be safely dispensed in these containers. Vials sold separately (5726N or 5727N). Use HCL’s tamper resistant tape for extra security. Packaging: 200/Case.