Vacuum pump, hand-operated, PVC body.
These durable pumps easily and quickly attain and hold vacuum of 635 mm Hg. Vacuum trigger release requires only one hand to operate and releases vacuum with the touch of an index finger. Adjustable vacuum release rate. Smaller size (Cat. No. 613 1-0010) has pumping rate of 15cc/stroke and .21 bar positive pressure at the exhaust port. Larger size (Cat. No. 6131-0020) has rate of 36cc/stroke and .48 bar positive pressure at the exhaust port. Full blank port pressure is obtained with only two strokes. Removable cover on exhaust port and trigger to release vacuum without disconnecting pumps from the line. Without vacuum gauge. Adjustable vacuum release rate controlled by trigger on pump. Ideal for field or lab use. Nozzle fits standard 1/4-in. l.D. tubing. Supplied with two-ft. length of NALGENE 180 clear plastic tubing.