100 Pack 20ml Glass Vials with Caps and Stoppers - Durable Lab Storage

In this review the 100 Pack 20ml Glass Vials is assessed as a practical, no-frills option for labs and hobbyists who need reliable sample storage in bulk. The single biggest reason to buy is the complete packing of 100 borosilicate glass vials with matching 20mm plastic-aluminum caps and rubber stoppers, which makes it an efficient choice for routine sample handling and long term storage when an excellent crimp seal is required. The set is aimed at users who value thermal resistance and tight seals for volatile or sensitive samples.

Key Features

• Packing completeness: Includes 100 x 20ml glass vials, 100 x plastic-aluminum caps and 100 x rubber stoppers so users receive a full kit for immediate use.
• Secure crimp seal: The plastic-aluminum caps with rubber stoppers create a tight crimp top seal that minimizes evaporation and suits long term storage of volatile samples.
• Borosilicate glass: Vials are made from borosilicate glass that resists thermal shock and tolerates a wide temperature range for heating or boiling to sterilize.
• Flat bottom design: The flat bottom ensures even heat distribution during heating and stable placement in racks or hotplates.
• Needle-friendly stopper: Rubber stoppers allow easy needle penetration for injections or sampling without compromising the seal.

Who It's For

This pack is best for laboratories, educational institutions, and experienced home experimenters who need a bulk supply of 20ml crimp top vials compatible with common autosamplers and who can use a 20mm vial crimper to complete the seal. It is also useful for anyone storing volatile solvents or small-scale reagent aliquots where evaporation resistance matters.

Those who should look elsewhere include users who need sterile, pre-sterilized containers out of the box or people who require specialized closures or nonstandard sizes; the vials are not supplied sterile and a crimper is not provided.

Pros & Cons

Pros

• Complete set of vials, caps and stoppers lets you stock up without sourcing separate components.
• High-quality borosilicate glass offers better thermal resistance than ordinary glass for heating or boiling.
• Crimp top system with rubber stopper provides one of the tighter seals for reducing sample evaporation.

Cons

• Vials are not supplied sterile, so additional sterilization is required for aseptic use.
• A 20mm vial crimper is required to fully seal the aluminum caps and is not included in the pack.

Specifications

Capacity	20ml
Quantity	100 vials, 100 caps, 100 stoppers
Cap and stopper size	20mm standard
Material	Borosilicate glass vials; plastic-aluminum caps; rubber stoppers
Temperature range	-328F to 392F
Bottom style	Flat bottom

Our Verdict

The 100 Pack 20ml Glass Vials is a solid value for anyone needing a bulk supply of reliable, heat-tolerant sample vials with matching caps and stoppers. It excels where a tight crimp top seal and thermal resistance are important, but buyers should plan to sterilize vials themselves and to obtain a 20mm crimper if they need fully sealed samples. For routine lab storage and compatible autosampler use, it offers practical versatility at a reasonable cost.

Frequently Asked Questions

Are these vials sterile?
They are not supplied sterile; they can be sterilized by heating or boiling before use.

Do the caps come sealed or do I need another tool?
The pack includes plastic-aluminum caps and rubber stoppers, but a 20mm vial crimper is required to fully crimp and seal the caps and is not included.

Will these vials work with autosamplers?
Yes, they are suitable for most common autosamplers and SPME systems listed by major manufacturers that accept standard 20mm crimp top vials.