Solinst Model 407 Bladder Pumps & Controllers Pressures must be less than

Pressures must be less than 35 psi

Accommodation for special particulate with different densities is provided through user-programmable "K-factors

Accommodates optional pitot

Or add a digital flow meter and you have your Redi-Flo3 stop pumping after the gallons you require were pumped

and flexible folders and site lists for logging data

Solinst Model 407 Bladder Pumps & Controllers Pressures must be less thanThe Solinst Bladder Pump features a new design providing consistent, high quality samples in all types of applications. It offers excellent performance and reliability. With Solinst Bladder Pumps, there is the assurance that there is no air water contact during sampling. It meets the most rigorous US EPA standards for VOC groundwater monitoring. The bladder guarantees that drive air or gas does not contact the sample, thus avoiding degassing or