Andair. Look under accessories and gascolator parts.
This is the only drain valve I'll use
CAV-110 replacement fuel drain valves are available in all stainless steel from Saf-Air Products by calling them direct at (734) 522-8360.
The part number is 110SS. I purchased four of them about six months ago for $20 each.
They are identical in all respects to the original ones supplied by Vans but will stay looking great for years to come.