I found even having a car, and going to numerous HD or Lowe's don't have those special items your looking for! It's much easier buying them online from www.AuaticEco.com
I've had great success finding everything here, sure pay a little more, but your not wasting your gas and time to HD, mostly they have empty box, items in the wrong box. At least at Aquatic Eco-System you can talk to a live person, explain what your trying to accomplish and someone will tell you what you need.
i never found any kind of unions and/or bulkheads around at HD or lowes..i looked everywhere in jersey city area...i ended up buying online like..saltysupply.com and aquacave.com
Thanks guys.
The HD on Northern didn't have much but the HD in Flushing had a better selection.
I got the unions and fittings but I still need some 1/2" nipple so I quess I will have to go the internet route.