Fisher 749B Changeover Manifold Assemblies

Fisher automatic changeover regulators change from the supply cylinder (when gas is exhausted) to the reserve cylinder automatically.Type 749B is a large capacity changeover manifold for commercial and industrial applications. It consists of two 64 Series regulators and a Type 803 direct indicator. The assembly is used primarily in conjunction with either a Type HSRL or 64SR regulator.
FeaturesLarge CapacityUL Listed (Type 749B, Second-Stage Regulators are Listed Separately)