The Campbell Hausfeld GR001100AJ is a single-port pressure switch that turns a compressor motor on at 135 psi and off at 175 psi, providing automatic, tank-pressure–based control for compatible Campbell Hausfeld units. This factory-set 135/175 psi switch serves as a straightforward replacement for compressors that use this configuration, helping maintain steady tank pressure and protect the system from over-pressurization. Built by Campbell Hausfeld, the GR001100AJ is a compact, direct-fit component designed for use in air compressors that require a 135 psi on / 175 psi off switch setting.
