Liquid Level Apparatus
Product Code : LSK-POM-11198
Liquid Level Apparatus (SKU LSK-POM-11198) consists of four glass tubes of different shapes joined at the bottom and mounted on a bakelite stand, used to show that a liquid settles at the same level in connected tubes whatever their shape. It is used in middle school, secondary and college physics. The apparatus is manufactured by Science Lab Supplies in its factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and offered directly to schools, colleges, tender contractors and distributors.
Specifications
A handful of facts define this communicating-tube set, and the table below gives each its own row. In short, four glass tubes, each of a different shape, are connected at their base and held upright on a bakelite stand so that the liquid level in every tube can be compared.
| Specification | Value |
|---|---|
| SKU | LSK-POM-11198 |
| Tubes | Four |
| Tube material | Glass |
| Tube shapes | Each tube a different shape |
| Connection | Tubes joined at the bottom (communicating tubes) |
| Stand | Bakelite stand |
| Demonstrates | Liquid stands at the same level in communicating tubes regardless of shape |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Liquid Level Apparatus
Pour coloured water into any tube and it rises to the same height in all four, whether the tube is wide or narrow, because the pressure at the same depth in a connected liquid is equal. The apparatus suits Class 8 to Class 11 fluid lessons as compact school physics lab equipment in India.
- NCERT Class 8 and 9: showing that liquids find their own level, the idea behind water tanks and level gauges.
- Class 11 (Mechanical Properties of Fluids): explaining that pressure depends on depth, not on the shape or volume of the vessel.
- Adding measured volumes from a Plastic Graduated Cylinder and watching all four levels rise together.
- Comparing with a Simple Glass Manometer, where the same principle is used to measure pressure.
Glass tubes are fragile: fill slowly, empty and rinse after use, and keep the stand on a level surface.
Standard Scope of Supply
The apparatus is supplied as the four connected glass tubes mounted on their bakelite stand, ready to fill. Coloured water or another liquid and any measuring vessels are not included, though a graduated cylinder can be added to the same quotation if needed.
Packing, MOQ and Lead Time
Ask for a quotation for a single apparatus or enough for every bench group, and Science Lab Supplies will state the packing, delivery time and price for that quantity. Packing for the glass tubes is described on the quotation, and companion fluid-pressure items can be priced alongside.
Science Lab Supplies, which has an Importer-Exporter Code, can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. Get in touch on the contact page, drop the apparatus into the enquiry cart, or review the lab tender page before you submit a tender enquiry.
Frequently Asked Questions
What does the Liquid Level Apparatus demonstrate?
It demonstrates that a liquid in communicating tubes stands at the same level in every tube, regardless of the tubes' shapes, because the pressure at any given depth in a connected liquid is the same.
How many tubes are there and what is the stand made of?
There are four glass tubes, each of a different shape, connected at the bottom. They are mounted upright on a bakelite stand that holds them steady during the demonstration.
Which liquid should be used?
Water is enough; a little food colour makes the levels easier to see from the back of the room. Empty and rinse the tubes after use so that no deposits form at the joints.
Is the apparatus made by Science Lab Supplies itself?
Yes. It is put together at the Science Lab Supplies manufacturing site in Saha, Ambala, India, and the company replies to each enquiry as the manufacturer, not as a stockist reselling another firm's goods.
Related Hydrostatics Apparatus
Each item below builds on the idea that liquid pressure depends on depth, through manometers, pressure demonstrations and density comparisons, and any of them can join the liquid level apparatus on a single quotation for a complete hydrostatics bench.
- Communicating Vessels — used to explain water level gauges and similar real-life applications.
- Fluid Pressure Apparatus (Spouting Cylinder) — sheet metal cylinder showing that pressure increases with depth.
- Hare Apparatus — compares liquid densities from the heights of two columns raised by suction.
- U-Tube Manometer on Stand, Wall Hanging Type — wooden base with a 15 cm scale and metre rule.
- Simple Pascal Law Experiment (Pressure String) — water streams the same distance from each hole when the piston is pushed.
- Expansion of Liquid Apparatus — shows different liquids expanding by different amounts over the same temperature range.
- U-Tube Manometer — glass manometer with a built-in reservoir and glass stopcock on a white back plate.
Browse the full Properties of Matter range, the Chemistry Lab range for communicating vessels and manometers, or all physics lab equipment.
Last updated: 9 October 2026