I am looking for four 25000' (A-4 seems to be the designation) oxygen flowmeters for backup oxygen in my LIVPT.  I can buy them from AS for $50 each but am hoping there are some less expensive sources.  Any ideas?

 

I also have two 18000' (A-3) flowmeters and cannulas from Mountain High.  Only been used twice since I purchased them two years ago from AS.  Make me an offer if you're interested.

 

Thanks, Clark Still (N750S, 80-85% done and hoping to fly next fall)