Water psi to air psi?

The psi pressure rating is good for any fluid. The fluid may be water or compressed air. -Destroyer of Babylon

Pounds per Square Inch

Seawater = .445 psi per foot. 5000 * .445 = 2225 psi Freshwater = .433 psi per foot. 5000 * .433 = 2165 psi

7000 PSI

pressure per square inch