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<DIV>Yep, they rot away. Cheap to replace....housing, gasket and gasket
cement. Might consider changing the thermostat while you're at it.
Should be less than $10 and might save you from having to change it a year
or two when it fails. (I think the gasket normally comes included with the
housing).</DIV>
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<DIV><FONT lang=0 size=3 face=Arial FAMILY="SANSSERIF" PTSIZE="12">Mark
L</FONT></DIV></DIV></TD></TR></TBODY></TABLE></DIV></BODY></HTML>