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Universal Tube Rack
Universal Tube Rack (Product Code: SLE/P/28) is an adjustable polypropylene rack used to hold laboratory tubes of different sizes upright in biology, chemistry and clinical teaching labs. It holds up to 12 tubes of one size, anywhere from 16 to 30 mm in diameter, and each opening closes around the tube with an iris turned by a knob. The rack is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Material | Polypropylene |
| Capacity | Up to 12 tubes of the same size |
| Tube diameter range | 16 to 30 mm |
| Tube volume range | 15 mL to 50 mL tubes |
| Tube holding | Iris openings: turn the knob to open, or insert a tube directly into the opening |
| Tubes | Not included |
| Product code | SLE/P/28 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Universal Tube Rack Used For?
Most racks have fixed holes, so a lab needs a different rack for each tube size. This universal rack adapts instead: the iris in each opening closes around whatever tube is placed in it, from 15 mL up to 50 mL tubes. It suits labs that switch between culture tubes, sample tubes and centrifuge-style tubes during the week, and it saves bench space because one rack covers several sizes.
To load it, turn the knob to open the iris, drop the tube in and release, or simply push a tube straight into the opening. The listed capacity is up to 12 tubes when all are the same size. As a piece of school laboratory equipment it is also handy for teachers who prepare sample sets in different tube sizes for group work.
What to Specify When Ordering
- The diameter and volume of the tubes you will use (the rack takes 16 to 30 mm and 15 mL to 50 mL tubes).
- The number of racks needed per bench or per lab.
- Whether you also need tubes quoted, since tubes are not included with the rack.
OEM Manufacturer
The Universal Tube Rack comes from Jain Scientific Equipments Private Limited, known by its trading name ScienceLab, which is the original equipment manufacturer. Production takes place at the company’s own licensed factory at Saha, Ambala, Haryana, and racks are sent factory-direct to institutions, laboratories, dealers and importers. Because you deal with the maker, questions about the iris mechanism or repeat orders go straight to the people who produce it. Visit the company profile for background on ScienceLab.
Related Scientific Lab Plasticware
Other ways to hold, handle and clean tubes in the lab:
- Test Tube Rack — a fixed-hole rack for routine test tube work.
- Test Tube Rack, Polypropylene — a plastic rack for storing rows of tubes.
- Polyprop Test Tube Basket — for rinsing and carrying tubes to the sink.
- Test Tube Holder — for gripping a tube while heating or pouring.
- Brush Test Tube — cleans the inside of tubes after use.
Explore the Scientific Lab Plasticware category for more.
Frequently Asked Questions
What tube sizes fit the Universal Tube Rack?
The Universal Tube Rack accepts tubes from 16 to 30 mm in diameter and from 15 mL to 50 mL in volume. The iris in each opening adjusts to the tube, so one rack can serve several tube sizes.
How many tubes does the Universal Tube Rack hold?
The Universal Tube Rack holds up to 12 tubes of the same size. If you plan to mix tube sizes in one rack, ask us through the contact page how many will fit before you order.
Are test tubes included with the Universal Tube Rack?
No. Test tubes are not included with the Universal Tube Rack. Order tubes separately, or tell us the tube type you need through the contact page so it can be quoted alongside the racks.
How does the iris in the Universal Tube Rack work?
Each opening of the Universal Tube Rack has an iris that you open with a turn of the knob. Place the tube, then let the iris close around it, or push the tube directly into the opening without turning the knob.
Who manufactures the Universal Tube Rack?
The Universal Tube Rack is an OEM product of Jain Scientific Equipments Pvt Ltd (ScienceLab), made at the company’s own factory in Saha, Ambala, India. Questions about the iris openings, bulk supply or repeat orders go straight to the manufacturer.
What information is needed for a Universal Tube Rack quotation?
For a Universal Tube Rack quotation, send the number of racks, the tube sizes you plan to use and the delivery location in India or abroad. Add the item to the enquiry cart or write to us through the contact page.
Request a Quote
Request pricing for the Universal Tube Rack through the contact page or by adding it to the enquiry cart. Quotations are issued directly by the manufacturer.
Last updated: 24 September 2026
