• This pump has a pumping rate of 15ml per stroke and can displace up to 725ml of air. It is fitted with valves to release its vacuum and a gauge to monitor the pressure created by the vacuum.
• Includes gauge that reads in centimeters and inches
• Pump rate of 15 ml per stroke

The vacuum pump has a pumping rate of 15ml per stroke and can displace up to 725ml of air. It is fitted with valves to release the vacuum and a gauge to monitor the pressure created by the vacuum. The vacuum pump is used with the #4400 Filtering Kit, and it is a great demonstration of atmospheric pressure. An instruction sheet is provided. Sold in a case of 20 pumps.