WHEATON® CompletePAK® Sterile Vial Kits, DWK Life Sciences. WHEATON® CompletePAK® is a range of primary packaging components that are stocked ready-to-use and are customizable for most drug applications. Variety of different sterile components; a kit for any application. Each kit component is particulate cleaned, depyrogenated, and sterilized, arriving in the lab ready-to-use.