3/8" schedule 80 - PVC pipe

[smcmahon]

http://www.andymark.com/product-p/am-0244.htm

As per the above, I would like to purchase a stock length of 3/8" schedule 80 PVC pipe so we can make spacers to custom lengths. Again, this is a 3/8" Inside Diameter. (Outside Diameter at AndyMark is 0.68")

Does anyone know a supplier, or have worked with one? Google searches seem promising but there's a lot of pipe-based technical lingo that confounds me.