The following websites for PEX tubing and fittings were uncovered by Nordic Tug owners and posted on owners' websites. www.pexconnection.com/index.php www.escousa.net/flair-it/index.html www.flairitwest.com/ I haven't purchased from the above sites, so can't say anything about their services. The plastic barbed compression fittings as used on my NT are very sound, almost unbreakable, and have the advantage being removable. The brass end fittings with crimp rings are permanent, a little less expensive, but require the expensive crimp tool. NT owners using PEX on their fresh water systems have posted positive experiences working with PEX tubing. Merry Christmas and Happy New Year to All Rich and Linda Losch SEA RACER NT 42-041 Anacortes