Description
SP4-0508
Our plastic half-spheres withstand 90 kg
of force when pumped free of air. Pass
them around the classroom,inviting
students to try to pull them apart using safety handles,or place in the Vacuum jar and remove the air to equalize the pressure and watch the halves
separate. Includes two ABS plastic
hemispheres,120mm in diameter; brass
exhaust valve,’quick link’ pressure tubing; plastic handles.
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