Donaldson P570330 hydraulic filter head provides the inlet and outlet connections for a hydraulic filtration assembly, featuring 1-1/4" NPT ports. This configuration uses 1-1/4" NPT threads on both the inlet and outlet, suitable for standard hydraulic fittings and piping. It is used to mount a filter element within a hydraulic circuit, enabling in-line filtration of pressurized fluid to protect system components.
