Screw Cap for 20mm Vial 20-400 Solid
$1.00
Ensure leak-proof sample preservation with the 20-400 Solid Top PP Screw Cap from vialshop.com. Designed specifically for standard 20mm neck sample vials, this solid (closed-top) cap is crafted from high-purity polypropylene (PP) to offer superior chemical resistance against acids, alkalis, and solvents. Its reliable airtight seal prevents evaporation, gas exchange, and contamination—making it ideal for long-term sample storage, chemical packaging, and laboratory research.
The 20-400 Solid Top Screw Cap from vialshop.com provides an airtight, contamination-free sealing solution for 20mm threaded laboratory storage vials. Built from durable, high-grade polypropylene (PP), this closed-top cap is designed to protect your valuable samples against degradation, leakage, and atmospheric exposure.
Whether you are storing environmental samples, analytical standards, or chemical reagents, this cap delivers consistent performance and long-term durability.
Key Features
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High-Purity Polypropylene (PP): Resistant to acids, alkalis, and organic solvents for broad chemical compatibility.
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Solid (Closed-Top) Protection: Fully seals the vial top to prevent sample evaporation and eliminate exposure to airborne contaminants.
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Leak-Proof Performance: Precision-engineered threading ensures a tight, uniform seal for transport or extended benchtop storage.
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Standard 20-400 Threading: Seamlessly fits standard 20mm neck glass and plastic sample vials.
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Ergonomic Design: Deep-ribbed outer edge allows for quick, secure manual tightening—even while wearing laboratory gloves.
Technical Specifications
| Feature | Specification |
| Product Type | 20-400 Solid Top Screw Cap |
| Cap Size / Thread | 20mm (20-400 thread finish) |
| Cap Style | Closed Top / Solid Top |
| Material | Polypropylene (PP) |
| Compatibility | Standard 20mm neck storage vials & bottles |
| Sterility / Cleanliness | Standard Laboratory Grade |
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