GSC International 1501-9 Osmosis Apparatus. The Osmosis Apparatus is a simple yet effective scientific tool used to demonstrate the principles of osmosis and diffusion across a semi-permeable membrane.

A double thistle tube with a porous membrane is held upright with the membrane covered end in a jar of water. When a sugar solution is added a the top of the tube, the liquid will rise in the tube. This apparatus clearly displays the concept of osmosis.
Includes:
• 1 Battery jar
• 1 Thistle tube with membrane
• 1 Stable support for the thistle tube

Demonstrates Osmosis Clearly – Designed to help visualize water movement across membranes, making complex biological processes more tangible for students.

Durable and Reusable – Constructed from high-quality glass and materials for repeated use in labs, classrooms, or homeschool settings.

Includes Semi-Permeable Membrane – Equipped with a functional membrane to simulate cell-like behavior during experiments.

Easy to Set Up and Observe – Simple assembly allows students or teachers to quickly begin experiments with clear, visible results.

Ideal for Classroom Learning – Perfect for biology lessons, STEM education, and lab demonstrations to teach core concepts like diffusion, osmotic pressure, and membrane permeability.

⚠️ Proposition 65 Warning for California Residents:

WARNING: This product may expose you to chemicals including styrene and/or bisphenol A (BPA), which are known to the State of California to cause cancer, birth defects, or other reproductive harm.

For more information, visit www.P65Warnings.ca.gov.