100 Pack 5ml Clear Glass Vials with Caps – 1.5 Dram Lab Headspace Vials, 20mm Neck Diameter, Includes Flip Top Caps and Self-Sealing Rubber Stoppers for Laboratory, Sample Storage

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• 100 SET VALUE PACK – COMPLETE VIAL KIT: This package contains 100 pieces of 5ml clear glass vials along with matching plastic-aluminum flip-off caps and self-sealing rubber stoppers. Designed as a ready-to-use bulk set for laboratory handling, sample collection, and general storage purposes.
• CLEAR DESIGN FOR BROAD APPLICATIONS: Transparent body allows easy inspection of liquid level and content condition. Commonly used in laboratories, essential oil storage, fragrance packaging, cosmetic formulations, reagent handling, DIY experiments, and other small-volume liquid applications.
• COMPATIBLE 20MM NECK SPECIFICATION: Each vial is built with a standard 20mm neck finish, featuring a 22mm outer body diameter and an overall height of 40mm. The opening size includes a 20mm outer neck and 12.5mm inner diameter, making it suitable for most 20mm rubber stoppers, aluminum-plastic seals, and common crimping tools.
• PREMIUM BOROSILICATE GLASS CONSTRUCTION: Made from laboratory-grade borosilicate glass, each vial has a wall thickness of about 1mm. It provides strong resistance against thermal stress, chemical exposure, and repeated physical handling, outperforming regular glass containers in durability.
• EXTREME TEMPERATURE TOLERANCE: Engineered for stable performance in harsh conditions, these vials can be used in environments ranging from -200°C to 200°C (-328°F to 392°F). Suitable for refrigeration, heating, boiling processes, and other temperature-sensitive applications.