DWK Life Sciences (Wheaton) Graduated Serum Bottles
By DWK - Wheaton Science Products![DWK Life Sciences (Wheaton) Graduated Serum Bottles](https://krackeler.com/tt/lg/graphics/0012/jpg/223950-1.jpg)
These bottles are manufactured from Wheaton "400" borosilicate glass (meets USP Type I standards). Raised graduations indicate approximate capacities in milliliters. Bottles accept standard stoppers and seals.