WHEATON® Screw Caps, White, 28-400 with PE Foamed Polyethylene liner.
- Use these caps with or other manufacturer’s numbered glass bottles or vials
- White polypropylene screw cap provides Clear surface for writing on cap
- Foamed polyethylene liner provides chemical resistance for acids, alkalis, solvents, alcohols, oils, household cosmetics and aqueous products
- Liner provides tight seal
