Nalgene* Repairable Hand-Operated Vacuum Pump with Vacuum Gauge, Zinc Alloy

These durable pumps easily and quickly attain and hold vacuum of 25 in. (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. Has pumping rate of 15cc/stroke and 15 psig (1.0 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. Made of zinc alloy for heavy-duty durability. Can be easily disassembled for repair or replacement of internal parts with repair kit.