Description
This glass penny head hollow stopper is manufactured from high-quality borosilicate glass 3.3, offering excellent chemical resistance, thermal shock resistance, and optical clarity. The penny head design provides a flat, circular top for easy handling, while the hollow construction reduces weight and material usage without compromising strength. The precision-ground standard taper joint ensures a secure, leak-free fit in outer joints of 14/20, 19/22, 24/40, and 29/42 sizes. Ideal for sealing flasks, columns, condensers, and other laboratory glassware during storage, reactions, and transport.
Key Features
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Laboratory-Grade Borosilicate Glass 3.3: High chemical durability and thermal stability for routine and demanding laboratory applications.
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Penny Head Design: Flat, circular top for comfortable grip and easy insertion/removal.
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Hollow Construction: Lightweight yet durable; reduces overall weight and cost without sacrificing performance.
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Precision-Ground Standard Taper Joint: Ensures a secure, leak-free fit in compatible outer joints.
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Multiple Joint Sizes Available: Fits 14/20, 19/22, 24/40, and 29/42 standard taper outer joints.
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Excellent Thermal Shock Resistance: Withstands typical laboratory temperature changes without cracking.
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Chemical Resistance: Resists most common acids, bases, solvents, and reagents under normal laboratory conditions.
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Clear Borosilicate Construction: Allows easy visual inspection of joint engagement and contents.
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Uniform Wall Thickness: Promotes even stress distribution and enhances durability.
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Reusable and Long-Lasting: Designed for repeated use with proper handling and care.
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Versatile Applications: Ideal for sealing flasks, columns, condensers, adapters, and other glassware during storage, reactions, and transport.
Specifications
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Product Type: Glass Penny Head Hollow Stopper
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Material: Borosilicate Glass 3.3
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Design: Penny head, hollow body
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Joint Type: Standard taper conical ground glass joint (male)
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Joint Sizes Available: 14/20, 19/22, 24/40, 29/42
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Color: Clear
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Compatibility: Standard taper outer joints of corresponding sizes
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Applications: Sealing flasks, columns, condensers, adapters; storage, reactions, transport
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Package Includes: Glass Penny Head Hollow Stopper (selected size)
