Adelphi Healthcare USA

Duran Laboratory Bottle Caps

Achieve safe and effective sealing of DURAN® laboratory bottles with proprietary DURAN® GL25, GL32, and GL45 screw caps.

Key features

  • Choose from plug-seal or PTFE-lined caps.
  • Optional pouring rings assist with clean pouring.
  • GL25, GL32, and GL45 sizes to fit all Duran® laboratory bottles.

Product compatibility

  • Available in GL25, GL32, and GL45 thread finishes.
  • Compatible with Duran Laboratory Bottles.

Technical specifications

  • Material: PP (polypropylene), or PBT (polybutylene terephthalate) with a PTFE liner.
  • Optional extras: PP and ETFE pouring rings.
Duran bottle caps 2
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Product Applications

Specifically designed to seal Duran® laboratory bottles and suitable for use in various laboratory settings.

Blue plug-seal caps offer excellent leak-resistance, while red PTFE-lined caps provide an inert barrier for additional chemical resistance. See product list below for details.

  • Product list

    PRODUCT DESCRIPTIONPRODUCT CODESIZETO FIT DURAN BOTTLE
    Blue PP cap with plug seal29 239 13GL2525ml
     29 239 19GL3250ml
     29 239 28GL45100ml - 20L
    Blue PP pouring ring29 242 19GL3250ml
     29 242 28GL45100ml - 20L
    Red PBT cap, PTFE wadded29 240 13GL2525ml
     29 240 19GL3250ml
     29 240 28GL45100ml - 20L
    Red PBT pouring ring, ETFE 29 244 19GL3250ml
     29 244 28GL45100ml - 20L
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Duran laboratory bottles

Why Choose Adelphi?

  • Stock Held Onsite

    We hold stock in the UK and US. Fast shipping available on our most popular product lines.

  • Expert Support at Every Step

    Our knowledgeable team is here to offer advice and support at every stage of your project.

  • Scalable Solutions

    With low MOQs and large inventories, our service grows with you from development to production and beyond.

  • Trusted Across Industries

    Serving the pharma, biotech, diagnostic, and related industries for over 50 years.

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