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Posted by HeatPro on June 16, 2008 at 16:06:04:
In Reply to: flair zone valve single pipe posted by darestc on June 16, 2008 at 16:00:39:
Most brands have 3-way zone valves, so asking the local plumbing/heating supplier would get one brand or other.
Honeywell is usually available
http://shop.solardirect.com/pdf/water-heaters/solar-hot-water/active-solar/valves/erie-emv.pdf
http://www.google.com/search?hl=en&q=3-way+zone+valve&btnG=Google+Search