The Hoffman electrolysis includes a central funnel and an H-shaped piece of glass with two tubes graduated to 60ml at intervals of 0.2ml. There is a ground glass stopcock at the top of each of the "H"-shaped tubes which is used to release the gas that is collected during electrolysis.
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
This product contains latex, which can cause allergic reactions in some people. If symptoms of an allergic reaction occur, stop use immediately and consult a physician.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.