US Plastics has what looks like good prices to me:
http://www.usplastic.com/
I kinda like the looks of the Tygon(R) Fuel and Lubricant Tubing myself. Here is the R-1000 tubing-> Tygon Peristaltic Pump Tubing . Prices for the thickwall stuff climbx pretty rapidlly tho, is it really that much better?
peace.
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