There are no metals in the fluid path of F-461 Series in-line Variable Area Flowmeters from Blue-White Industries, making the units well-suited for use in many ultrapure applications. Constructed of chemical-resistant polysulfone, the flowmeters offer better resistance to high temperatures, pressures and a broad use of harsh chemicals. The high-capacity F-461 utilizes precisely engineered ridges molded into the meter body, which guide polytetrafluoroethylene floats. Maximum fluid temperature is 210 degrees F at 0 psi with polyvinylidene fluoride adapters and 130 degrees F with polyvinyl chloride adapters. Maximum working pressure is 150 psig at 70 degrees F. An optional splash shield is available. 714-893-8529; www.blue-white.com