44-2200 Series is a compact, lightweight high purity single-stage regulator for specialty, flammable, and industrial gas flows of less than 5 SCFM / 141 SLPM. Its diffusion-resistant metal diaphragm seal ensures gas purity and integrity. Ideal for use in laboratory and point-of-use gas systems, sampling systems, zero, span and calibration analyzer gases, specialty and industrial gas cylinder regulator and chromatograph flame detector fuel supply.