Test Tube with Joint and Stopper
Product Code : EL-TT-10153
Lab Glassware Manufacturer supplies the Test Tube with Joint and Stopper from its manufacturing facility in Ambala, Haryana, to research and teaching laboratories across India and export buyers in Liberia, Sierra Leone and Guinea and other markets across the Mano River region.
Quick answer: This is a glass test tube fitted with a ground-glass joint and matching stopper, available in six height-by-outer-diameter sizes from 100×12mm up to 200×38mm, allowing the tube to be sealed securely for reactions, sample storage or short-term containment rather than left open or covered loosely.
| Height × O.D. |
|---|
| 100 × 12mm |
| 125 × 16mm |
| 150 × 18mm |
| 150 × 25mm |
| 200 × 12mm |
| 200 × 38mm |
Why a Ground Joint and Stopper Instead of a Plain Rim
A plain test tube can be covered loosely with foil, cotton or a snap cap, but none of these give a reliably airtight or vapour-tight seal. A ground-glass joint fitted with a matching stopper creates a much tighter seal, which matters when a reaction needs to be run with limited air exchange, a sample needs to be stored without evaporation or contamination, or a tube needs to be shaken or inverted without its contents escaping. Offering six sizes from a slim 100×12mm up to a larger 200×38mm covers a wide range of sample volumes and reaction scales while keeping the same reliable ground-joint sealing method across the whole range.
Frequently Asked Questions
What sizes are available for this test tube?
It is available in six height-by-outer-diameter sizes: 100x12mm, 125x16mm, 150x18mm, 150x25mm, 200x12mm and 200x38mm.
Why use a ground joint and stopper instead of a plain tube with a cap?
A ground-glass joint and matching stopper create a tighter, more reliable seal than foil, cotton or a snap cap, which matters for reactions run with limited air exchange or samples that need to be stored, shaken or inverted without leaking or evaporating.
Can the stopper be used interchangeably with other tubes?
Stoppers are ground to match a specific joint size, so a stopper should be paired with a tube of the same joint size for a reliable seal; confirm exact joint compatibility at enquiry stage if mixing tubes from different sources.
Can this be supplied for bulk, tender or export orders?
Yes. It is supplied in bulk to research and teaching laboratories in India and is exported to distributor and institutional buyers, including recent enquiries from West African markets such as Liberia, Sierra Leone and Guinea. Share required sizes, quantity and destination country through Contact Us or the Tenders page for a quotation.
Related Products
Explore other Test Tube range items: Test Tube With Interchangeable Stopper and Reaction Tube, or see the full Test Tube range.
Request a Quote
Ready to order the Test Tube with Joint and Stopper for your laboratory, institution or export order? Contact Us for a quotation, or visit the Tenders page for bulk and institutional procurement.
Last updated: September 2026.