Communication Vessel Apparatus
Product Code : SCL-PL-11818
Communication Vessel Apparatus (SKU SCL-PL-11818), also called communicating vessels, shows that a liquid poured into connected tubes settles at the same level in each one, whatever the size or shape of the tube. It suits liquid-pressure lessons from middle school to Class 11 physics. The apparatus comes out of the Science Lab Supplies factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, where it is manufactured for direct quotation to schools, colleges, tender contractors and distributors.
Specifications
The table below gives each detail of the communicating-vessel set, from the tube count to the base size. In short, four glass tubes of different shapes and sizes rise from one common horizontal pipe, and the assembly sits on a 230 x 100 x 22 mm wooden base with a total height of 160 mm.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11818 |
| Also known as | Communicating vessels |
| Vertical tubes | 4 |
| Tube material | Glass |
| Tube shapes | Each tube different in shape and size |
| Connection | Common horizontal pipe |
| Base material | Wood |
| Base dimensions | 230 x 100 x 22 mm |
| Overall height | 160 mm |
| Demonstrates | Equal liquid level in all tubes, independent of vessel size or shape |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Communication Vessel Apparatus
The apparatus demonstrates that the pressure in a liquid at rest depends only on depth, so connected columns reach one common height regardless of shape or width. It supports liquid-pressure topics from CBSE/NCERT Class 8 science to Class 11 physics, and it fits well within school physics lab equipment in India.
- Class 8 science (Force and Pressure): liquids exert pressure and find their own level.
- Class 11 physics (Mechanical Properties of Fluids): hydrostatic pressure depends on depth, not on vessel shape; Pascal's law can follow with the Simple Pascal Law Experiment (Pressure String).
- Discussing everyday examples such as water tanks feeding taps, a teapot and its spout, and hydraulic machines shown on the Hydraulic Press Model.
Standard Scope of Supply
The Communication Vessel Apparatus is supplied as a single unit: the four glass tubes joined by their common horizontal pipe and mounted on the 230 x 100 x 22 mm wooden base. Coloured water makes the levels easier to see, and further fluid-pressure items can be added to the same quotation.
Packing, MOQ and Lead Time
Ask for one unit for classroom demonstration or a set for each practical group. Science Lab Supplies replies with a quotation that gives the packing, delivery time and price for the quantity requested, and other fluid-pressure apparatus can be included on it.
Science Lab Supplies holds an Importer-Exporter Code as a registered exporter and is able to ship to buyers in Tanzania, Uganda, the UAE, Saudi Arabia, Oman and the Philippines. For prices, message the sales team through the contact page, drop the apparatus into the enquiry cart, or check the lab tender page for tender-based purchases.
Frequently Asked Questions
What does the Communication Vessel Apparatus demonstrate?
It shows that liquid in connected vessels settles at the same height in every tube, even when the tubes differ in shape and size, because pressure in a still liquid depends only on depth.
How big is the apparatus?
It stands 160 mm high overall on a wooden base measuring 230 x 100 x 22 mm. The four glass tubes rise from a common horizontal pipe fixed above that base.
Is Science Lab Supplies the manufacturer or a trader?
The four-tube apparatus is produced at the company's own factory in Saha, Ambala, India, so Science Lab Supplies acts as manufacturer and handles your quotation and dispatch itself.
Why might the level in a very narrow tube look different?
In very narrow bores, capillary action can raise or lower the surface slightly. Read the levels at the flat part of each surface and compare the wider tubes for the clearest result.
Related Fluid Pressure Apparatus
These Physics Lab and Properties of Matter items extend the equal-level demonstration to pressure at depth, pressure transmission, pressure measurement and capillarity, the effect that alters levels in very narrow tubes. Each one can be quoted alongside this apparatus to build a fluid-pressure bench.
- Liquid Level Apparatus — four differently shaped glass tubes joined at the bottom, on a bakelite stand.
- Liquid Level Apparatus (Physics Lab) — shows connected bodies of water levelling out whatever their shapes.
- Pascal's Law Demonstrator — 8 cm metal sphere with small nozzles and a fitted piston.
- Fluid Pressure Apparatus (Spouting Cylinder) — 400 x 68 mm metal cylinder with three outlets at different heights.
- U-Tube Manometer on Stand Table Model — mounted on a wooden table base with a 50 cm scale.
- Capillary Tube Apparatus — six 150 mm capillary tubes of different bores in a trough.
- Capillary Tubes — clear 1 mm glass tubes for capillary rise.
Browse the full Physics Lab range, the Properties of Matter range, or all physics lab equipment.
Last updated: 22 October 2026
