These pumps have a pumping rate of 15ml per stroke and can displace up to 725ml of air. They are fitted with vacuum-release valves.
WARNING: This product can expose you to chemicals including acrylonitrile, 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.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.