Would suggest hose clamps on the push on fittings for additional security.
pushloc fittings cannot have hose clamps installed, the clamps will cause the barbs of the fitting to cut the hose.
the barbs on the pushloc fittings are 2-3x the size of a barbed fitting that you use clamps.
I have a few pushlocs in my onboard air system @ 150 psi and they are holding fine