Square D 9013 Pressure Switch Cross Reference to Boshart PS02 Series
One of the main differences between the Square D and Boshart switch is the logo on the plastic covering, as seen in the photos below, however the operation is the same.

The chart below provides the equivalent Boshart PS02 Series pressure switch to a list of common Square D Class 9013 pressure switches.

Additional Resources
https://support.boshart.com/what-are-10-great-features-of-the-boshart-ps02-series-pressure-switches
https://support.boshart.com/i-have-totally-messed-up-my-pressure-switch-settings-now-what
https://support.boshart.com/what-information-is-needed-to-properly-select-a-pressure-switch
https://support.boshart.com/what-are-the-adjustment-ranges-for-a-ps02-series-pressure-switch