Hollow Stoppers, High Quality Borosilicate Glass (BORO 3.3), Heavy Quality
From $2.10 (ex GST)
- Lightweight hollow design reduces joint stress
- Precision-ground for airtight, leak-resistant sealing
- Durable and reusable for long-term use
- Ideal for flasks, condensers, and jointed glassware
- Used in chemistry, pharmaceutical, and academic labs
- Made from LabChoice BORO 3.3 glass – High quality
- Description
Description
Hollow glass stoppers provide secure, reusable closures for laboratory glassware while allowing reduced mass and improved handling compared to solid stoppers. These heavy quality BORO 3.3 hollow stoppers are designed for tight, reliable sealing of flasks, adapters, condensers, and reaction vessels used in analytical chemistry, distillation, titration, and general laboratory procedures. Their clear borosilicate construction offers excellent visibility of joints and ensures a precise fit that supports contamination free workflows and stable sealing under routine laboratory conditions.
The BORO 3.3 glass composition follows ISO 3585 requirements for borosilicate laboratory glass and aligns with ASTM E438 standards for thermally stable, chemically resistant glassware. These performance properties allow the stoppers to withstand autoclaving, heating, cooling, and exposure to aggressive solvents and reagents commonly used in research and teaching environments. Each stopper is manufactured with smooth, accurately ground surfaces that support leak free sealing and minimise wear when used with matching standard taper joints.
These hollow stoppers are chosen by LabChoice Australia customers who require durable, high clarity, and long lasting closure systems for their BORO 3.3 glassware. Suitable for universities, school laboratories, industrial R and D, organic synthesis, environmental testing, and quality control facilities, they provide dependable joint sealing and extended service life. Designed for repeated use in modern Australian laboratories, these heavy quality stoppers deliver consistent performance, reliable sealing, and easy integration with standard laboratory glassware assemblies.
| Item Code | N S | Pack |
| LC-12-HS5001 | 10/19 | 1 |
| LC-12-HS5002 | 14/23 | 1 |
| LC-12-HS5003 | 19/26 | 1 |
| LC-12-HS5004 | 24/29 | 1 |
| LC-12-HS5005 | 29/32 | 1 |
| LC-12-HS5006 | 34/35 | 1 |
| LC-12-HS5007 | 45/ 40 | 1 |
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Our Reviews
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab