update ... the cheapest NON O2 barrier stuff (per my OWB mfg that is all I need) I found for a 100' roll (that is a problem finding it in that qty and not three hundred feet) is the ebay store "Pex Tubing store" for $55 plus $21 for shipping and since we are both in NY I have to pay tax. I was just down to Lowes and they have the roll of 100" of ZURN Pex for $77 thus it's a wash for me! probably go with the lowes stuff as I can pick it up anytime (unless someone knows something I don't)
http://cgi.ebay.com/ws/eBayISAPI.dl...0031&_trksid=p3907.m32&_trkparms=tab=Watching
http://cgi.ebay.com/ws/eBayISAPI.dl...0031&_trksid=p3907.m32&_trkparms=tab=Watching