I bought 10 of the straight 1/8 NPT fittings ($1 ea) and 10 of the "Union T" fittings ($1.61) from a place called Trimantec. I should have bought a few of the elbows, Y's and connectors too. I guess the manufacturer is AirTAC.
It won't save you much since you'll still pay $20 shipping, but I think I garnered some good will by giving a few to a friend that works on my plane.
I believe I have one of the 1/8" NPTs left and several of the T's if you want them.
I found a source. Push Fittings
Two boxes of 10 each. Straight and 45 degree. Including shipping it was still cheaper than three fittings from those other guys. I really hate that. I want to give them my business, but I can't justify the cost.
