I have two air valves left since one buyer figured out his panel didn't have
enought space for them.  The mounting flange is 2-5/8" dia and the air
outlet is 1-1/4" dia.  If anyone is interested let me know off the LML at
wdodson@bak.rr.com.  Price is $100 for the pair plus $10 UPS.
Thanks,
Walter Dodson
661.345.6140 cell/day