Second Stage Regulators

Second-stage regulators reduce the pressure from a first-stage regulator, usually 10 psig to 11″ water column, in domestic installations. Vents are screened with standard orientation over the inlet, but other orientations are available.
Fisher second-stage regulators are painted palm green for easy identification. The Fisher Types R622 and R652 are equipped with stainless steel inlet screen to reduce the amount of debris entering the regulator.