entirely correct. go for 4500 psi as 3000psi is well known as being "gay"Thanks lovetone.
So to recap you're saying the 4500psi & 3000 psi is just the max pressure that the bottle can take fill wise.
The HP & LP on presets refers to a regulated release of air? ot which if mem serves me correct on the micro max flow is about 800psi?