Calipers Z - D26612 Air Compressor Pressure Switch This air compressor pressure switch is compatible with Porter Cable models, designed to operate at 150/120 PSI. It features a 4-port configuration and is rated for 120 volts. The switch is a direct replacement for D26612 and ZD26612 models, ensuring a seamless fit and reliable performance. Ideal for maintaining optimal pressure levels in your air compressor, this component is essential for efficient operation.