This durable pump easily and quickly attains and holds 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 Pumping rate of 15 cc/stroke and 15 psig (1.0 bar)…

Works best between 10 to 28 in. Hg Prevents back pressure with aspirator-type vacuum pumps Made of high-density polyethylene with gum rubber flap Serrated connectors on inlet and outlet take 1/4- to 5/16-inch-bore tubing Useful for vacuum systems Not for use with liquids

Compact, lightweight, light duty hand pumps Useful for numerous small volume vacuum or pressure requirements in the laboratory or field Provides vacuum of 25 inches Hg (85 kPa) Pumping rates of 15 or 36 cc per stroke Pumps are molded of polyvinyl chloride, with finger grips in squeeze-type…

Fits faucet with 3/ 8 inch internal pipe thread Usable for pump-off of corrosive vapors which attack metal Operates efficiently with water pressures as low as 7.5 psi for minimum water consumption Maximum free air pumping capacity of 11.5 liters per minute at a water flow rate of 6.5 liters per minute