TRUE laboratory bottles, VWR®. Supplier: VWR Collection. Description: Laboratory reagent bottles are made from clear Borosilicate 3.3 glass, with a pouring ring. Bottles are supplied with a polypropylene screw cap. New Product. ,215-4443EA,215-4444EA,215-4442EA,215-4438EA,215-4445EA,215-4441EA,215-4439EA.