Honeywell C437D 2003 gas pressure switch is OBSOLETE
Honeywell C437D 2003 gas pressure switch is OBSOLETE. Honeywell does not offer a replacement.
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This is an official Honeywell replacement part
Honeywell C437D 2003 gas pressure switch, mercury-free, 1-26" wc; replaces C437D 1005 and C437D 1039