You need fittings,line,switches, some sort of gauges, a pressure switch to shut of compressor,and brackets.
I buy most of the stuff I install from Suicidedoors.com, Jason is the man.
I have used alot of companys products and his is by far the best stuff. Any questions call me.
By the way I am about to bag one of my Datsun 620 p/u's using all Jason's products. It's a 78 kingcab. I will also be doing a 00 Silverado the end of this month.
Frank
Enhanced Concepts
727-638-4667