Profile: PrincetonCryo.com™ is involved in the sale, service, maintenance & installation of cryobiological storage systems. We offer a wide range of liquid nitrogen and sample storage dewars. We provide valves, hoses, phase separators, freezer racks and canisters. Our lab series cryogenic dewars are the most convenient, economical way to store and dispense liquid nitrogen. Many lab units can be fitted with pouring spouts, pressurized dispensing devices or dippers to aid in the transfer of liquid nitrogen. Our lab series cryogenic dewars includes Lab 4, Lab 5, Lab 30 & Lab 50. Our Laser-Cyl liquid nitrogen cylinder's automatic pressure builder and economizer systems deliver optimal pressure up to 500 psig (34.5 bar). It is designed specifically for laser applications. Our product Dura-Cyl is a medium or high pressure liquid nitrogen cylinder (230-350 psig/15.9-24.1 bar) for gas applications. It provides the longest holding time, lowest evaporation rate, highest gas-withdrawal rate and the best life-cycle cost. We provide tank switchers, temperature monitors, plastic boxes, oxygen sensors & alarms.