Description
This straight hollow stopper with closed bottom is manufactured from high-quality borosilicate glass 3.3, offering excellent chemical resistance, thermal shock resistance, and optical clarity. The hollow body reduces weight for easy handling, while the closed bottom provides a secure seal and prevents liquid or vapor from entering the stopper cavity. The precision-ground standard taper joint ensures a tight, leak-free fit in 14/20, 19/22, 24/40, and 29/42 outer joints. Ideal for sealing reaction vessels, flasks, columns, and other laboratory glassware during reactions, storage, 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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Straight Hollow Design with Closed Bottom: Lightweight hollow body for easy handling; closed bottom prevents liquid or vapor ingress.
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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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Smooth Ground Surface: Provides a tight seal and easy insertion/removal without binding.
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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 reaction vessels, flasks, columns, condensers, adapters, and other glassware during reactions, storage, and transport.
Specifications
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Product Type: Straight Hollow Stopper with Closed Bottom
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Material: Borosilicate Glass 3.3
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Design: Straight hollow body with closed bottom
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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 reaction vessels, flasks, columns, condensers, adapters; reactions, storage, transport
