Adelphi Healthcare

28mm Bottle Caps

These 28mm screw caps provide a secure, reliable seal for liquid medicines and syrups in bottles with a PP28 threaded neck, ensuring product integrity and patient safety.

Key features

  • Designed to suit glass and PET syrup bottles with a PP28 thread.
  • Tamper-evident and child-resistant options protect against misuse and ensure patient safety.
  • Teflon-wadded caps offer a protective barrier for sensitive or aggressive formulations.
  • EPE wads available for effective sealing and product preservation.
  • Wadless options designed for use with rubber stoppers.

Product compatibility

  • Compatible with Kylix and PET Syrup Bottles.
  • Available in tamper-evident or child-resistant designs.
  • Compatible with oral syringes and bottle neck adapters.
  • Suitable for various liquid pharmaceutical formulations.

Technical specifications

  • Material: Polypropylene (PP), Polyethylene (PE)
  • Thread: PP28.
  • Sterilisation: Non-sterile.
A selection of white PP28 caps with different features.
A child resistant PP28 cap.
An EPE wadded tamper evident PP28 cap.
A wadless white PP28 cap.
PTFE wadded 28mm cap.
A tamper evident PP28 cap.

Product Details

Available in tamper-evident (TE) and child-resistant (CR) options, these screw caps are compatible with the Kylix glass syrup bottle range and PET syrup bottles with a PP28 neck finish. 

Product Applications

Designed to seal glass and PET syrup bottles with a PP28 neck finish. Suitable for oral liquid formulations and syrups.

Request a quote

Our PP28 bottle caps are from STELLA and other trusted manufacturers.

Why Choose Adelphi?

  • Stock Held On-Site

    We hold stock in the UK and US. Fast delivery 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 associated industries for over 50 years.

Browse related products

View all products
  • Three Amber Kylix Glass Syrup Bottles.

    Kylix Glass Syrup Bottles

    Type III glass syrup bottles with an industry-standard PP28 neck finish. See product
  • 320 2 Dosing Cups DSC066210 White

    Medicine Dosing Cups

    Transparent polypropylene dosing cups for measuring oral liquid medicines. See product
  • A clear Alpha PET Syrup Bottle

    PET Syrup Bottles

    Cleanroom-manufactured PET syrup bottles with a standard PP28 thread. See product
  • An elmplastic Short Form Oral syringe with dosing graduations.

    Short Form Oral Syringes

    Oral syringes with a shorter design to better match syrup bottle dimensions. See product
  • Two elmplastic oral dosing syringes with graduations: one with a flat end and one with an elm-end.

    Oral Dosing Syringes

    Polymer syringes for precision dosing of oral medicines. See product