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Old 09-07-2007, 10:25 AM
Chas H Chas H is offline
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Join Date: Dec 2006
Location: beautiful Bucks Co, PA
Posts: 961
Quote:
Originally Posted by davidmash View Post
No idea. how do I find out? I looked at it and did not see anything.
It's usually stamped into the flat part of the thermostat or the bypass valve at the bottom. It might be on the box of the new one.
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