Holy ****! Mountain out of a mole hill. ^^^^^^^^^^^^^^^This and be done with it. NPT are a super stupid Briths design that should have been outlawed centuries ago. It is a tapered design that simply requires mega torque to seal but still never really does. Over the centuries man has figured out that this design is in fact **** and that non-like materials work pretty good at sealing with an NPT. Example---Brass barb 1/4" NPT in cast iron. Steel NPT in Aluminum manifold. The Permatex liquid Teflon is excellent and smells nice to boot. J.Rob
