The F-450N units are available in configurations for in-line or panel mount installations.
The F-450N Series offers a tough infection molded Polysulfone meter body, corrosion and wear resistant internal parts, easy to read silk screened scales, good accuracy and repeatability. The F-450N Series may be ordered Specially Equipped for harsh environments. Also, the series is available with an integral, adjustable flow control, needle metering valve.

The F-451 Series offers excellent accuracy(±3%) and repeatability, combined with a durable Polysulfone meter body and adapters, as well as #316 stainless steel internal parts. F-451 units have "V" clamp connections which couple the meter body to the adapters at each end
of the flowmeter. This configuration facilitates both installation and maintenance. A precision textured, light admitting surface at the rear of the meter body, called FloatLite, diffuses ambient light and creates a softly illuminated background that greatly enhances meter readability.
F-451 flowmeters have liquid calibrations between 1 and 40 GPM(3.8 to 155 LPM); and an air (STP) calibration of 8 to 80 SCFM.
It's tough to beat the quality, economy and reasonable leadtimes of these flowmeters.