I have decided to keep ths valve for the time being. I have (2) max flo valves with a few oring rebuild kits that I would be willing to sell for $60. Both need to be rebuilt.
I have the followng reg for sale. 5000 psi is sold. The 4500 was my main reg. I just rebuilt the on/off and should work great, but has not been tested.
4500 - $45 shipped/PP'd US