Max Flow Question

[marley618]

I found a good deal on a used max flow, but the owner isn't sure if it's the HP or LP version. How do you tell which one it is? And it's the new style max flow if that makes a difference. Thanks.

[mykroft]

Check the output pressure he's running. If it's over 300psi, it's an HP version.

[Muzikman]

You can tell by the manifold, but I do not know how to tell the difference with the new ones. Does smartparts.com have any user manuals.