Miller Electric Regulator, Cylinder, Nitrogen, CGA-580 (30-450-580)

I looked at many nitrogen regulators and this one had the best feaures. For purging an AC system you can throttle it down to a 1-2 pisg setting and will hold that value. For high pressure testing it works great also. The regulated gauge reading is not exact but close enough for most testing. Would suggest using another guage for comparison if necessary. A very rugged regulator made in the USA.

The quality is nice but not that of a $1,000 model. Easily suitable for uses Miller lists as uses. The lowest psi range may be "touchy" if you are thinking about un-ilsted uses. It came NIB with instructions. The quality of the mating surfaces (no leaks) is obvious. A great buy for it's listed uses.

I can only get 400 psi out of it on a brand new tank. I need the full 600 from it for my shocks. And too late to return.Not happy!

Works great, but I was mistaken as I thought the second gauge was a flow-rate and not a pressure. Does not really matter, just have to guess some on your flow rate so you don't run your tank out too fast. Smith makes awesome stuff and this is the best price I've found anywhere.

I use it for filling ori struts. Works great, much better than the uniweld I had before it for sure. My only complaint is the low pressure gauge could use more precise markings. Had to guess where 90 psi was.

I liked that I could just hook my hoses up to it with no adaptors. It fit my 20 cubic foot nitrogen bottle from the HVAC supplier. It seems well made.

I purchase this N2 regulator and soon after installing it in the tank I found out that the intake for high pressure was installed in the low pressure output. After some work and not incidents I was able to get it working. I hope that the high pressure did not damage the regulator.

Great quality and I removed the end and screwed in a hose line directly. Use a box wrench or deep well socket to remove and lesson chance of damage to regulator.