64-2800 Series high purity, tied diaphragm pressure reducing regulator offers Stainless Steel construction with 10 Ra microinch / 0.25 micrometer surface finish and is electronic grade cleaned. Inlet pressures of 1000 or 3500 psig / 69.0 or 241 bar with outlet pressures up to 150 psig / 10.3 bar. Ideal for use in 1/4" point-of-use, gas cabinets, regulation of specialty gases, crystal growing and diffusion furnaces.