Pipette Bulbs


Explore our curated selection of pipet bulbs for laboratory use:

  • Simple Suction Rubber Bulbs: Ideal for use with small Pasteur or transfer pipets, operating on a straightforward 'suck-in and blow-out' mechanism.
  • Heavy-Duty Suction Bulbs: Designed with thicker walls for enhanced durability, perfect for handling larger pipets.
  • Safety Pipette Bulbs: These bulbs ensure safe liquid handling with serological or volumetric pipets, eliminating the hazardous practice of mouth suction. Typically made from silicone, natural rubber, or synthetic rubber, these bulbs feature a snug-fitting nozzle for the pipet and may include three 'pinch-and-release' ball-valve openings for precise control over air expulsion, liquid suction, and discharge. Flip-style pipet fillers simplify one-handed operation with just two valves.
  • Gas Collecting Rubber Bulbs: These natural rubber bulbs have two plastic valves, used for filling tubes and bottles with gas samples.
  • Atomizer Bulb: Made from natural rubber, this bulb features metal valves to spray or atomize liquids.

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Rubber Pipette Bulbs for Laboratories

Pipet bulbs are flexible, variable-capacity devices essential for creating vacuums or applying pressure to the contents of serological, volumetric, or transfer pipets. They are crucial for efficiently collecting, transferring, and dispensing liquids and gases across a range of laboratory applications. Available in various styles and materials, our pipet bulbs cater to all your laboratory needs.


Most of our safety pipet bulbs boast a universal design, fitting a wide array of pipet sizes from 75 cc to over 100 ml. This versatility makes them ideal for various laboratory functions, including:

  • Hazardous Reagent Transfer: Safely transfer hazardous chemicals and reagents.
  • Routine Dispensing: Facilitate routine and repetitive dispensing of sample aliquots.
  • Controlled Staining and Reagent Addition: Manage the drop-by-drop transfer of histological stains or reagents with precision.
Pipette Bulb Maintenance

Our pipet bulbs are autoclaveable, washable, and reusable, designed for longevity and repeated use in demanding lab environments. However, it is crucial to handle them with care to prevent the ingress of aggressive fluids that could lead to contamination, damage, or malfunction.

Your pipette bulb specialist

Can't find the pipette bulb you need? Reach out to us! At SECO, we're more than just suppliers; we're your partner in sourcing scientific equipment.


We pride ourselves in providing affordable, high-quality laboratory essentials, backed by fast logistics from our Pennsylvania warehouse. This ensures rapid 1 or 2-day delivery to most of the Eastern USA.


Let us equip your lab with the best scientific equipment and supplies. Because quality results begin with quality tools.