Description
The handheld vacuum pump comes with a gauge and 19.5 inch tube. Experiment with air pressure and atmosphere, vacuum filtering and check for leaks. This pump features a gauge in inches, Hg displaces 725 mL of air. Pump rate of 15 mL. Blue tubing is 19.5 inches with 6 millimeter inner diameter. Not for heavy continuous pumping. Rubber O- ring will roll in Cylinder at 20 HG after approx 10 pumps, Can be dissasmbeled to be serviced / oil when needed. NOT For automotive use.
