http://www.ebay.com/itm/3-8-Inch-NPT-to-Hose-Barb-Brass-Drain-Pet-Cock-Shut-Off-Valve-Fuel-Gas-Air-ball-/110985084897?pt=LH_DefaultDomain_0&hash=item19d739ffe1
So Im looking to possibly purchase these USA made brass petcocks. I already have the 46 mm adapter plates with 3/8 threaded hole...