A series of Teflon turbine flowmeters for corrosive and ultrapure water applications is now available. The flowmeters have wetted Teflon parts, and the flowrate capability is 0.25–600 GPM. They are available with wafer end fittings or RF stainless steel flanges per ANSI up to 2,500 psi, ring joint flanges, and din-type flanges.