Anyone have any recommendations for a decently priced demand valve? 

Most new ones will run you 350 to 400 bucks...Ebay can be a source of used units.

There are cheaper ways to get high flow..... You can get a regulator from W.T. Farley that will flow 40LPM for $123.00. It's a rare person that can outrun that flow rate.

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If you really want a demand valve here is one that would work well for you: START PRINTPAGEMultimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or END PRINTPAGE

Thanks Racer.  Conserving O2 would also be another reason I'm looking into a demand valve. 

Racer1_NC wrote on Aug 31^st, 2023 at 1:59pm:

Most new ones will run you 350 to 400 bucks...Ebay can be a source of used units. There are cheaper ways to get high flow..... You can get a regulator from W.T. Farley that will flow 40LPM for $123.00. It's a rare person that can outrun that flow rate. START PRINTPAGEMultimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or END PRINTPAGE If you really want a demand valve here is one that would work well for you: START PRINTPAGEMultimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or END PRINTPAGE

Hey Racer, do I really need a demand valve that accomodates up to 120 LPM or would this 40 LPM one suffice since's $100 cheaper?

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Also, would both of those demand valves work with this regulator that I already have?

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Just out of interest,  Slacker,  have you checked out the  Oxygen Info  button over on the left?  It includes lots of excellent stuff on different ways to set things up.

I re-read it just recently and was delighted with how informative it is.

AussieBrian wrote on Sep 4^th, 2023 at 10:45pm:

Just out of interest,  Slacker,  have you checked out the  Oxygen Info  button over on the left?  It includes lots of excellent stuff on different ways to set things up. I re-read it just recently and was delighted with how informative it is.

Yep, I have read it.  Agree that it's got some great info.

in the wt farley link posted above by Racer1_NC,

What are the "optional 50 PSI auxiliary port" and the "metal T screw"?

If you look at the illustration on their website, that "t screw" option is to replace the green plastic tightening screw handle on the right side with a metal one.