Here's the Kluberantz part numbers for the supplies you will need.
3/16" tubing (part # A401)
Edstrom Standard valves with 3/16" barb fittings (part # A102)
3/16" barb Tee fittings (part # A405)
3/16" barbed Elbow (part # A404)
supply valve with 3/16" barb outlet (part # A202)
Have a look at this page for how I run the tubing.
http://www.arbreptiles.com/cages/rat_rack/ratrack.shtml
That page mentions Bass Equipment. When I wrote that page 5 or 6 years ago they had the best prices on the equipment. They have since gone up and Kluberantz has the best prices I found last time I ordered any.