Replacing vacuum switch on Furnace
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Replacing vacuum switch on Furnace
My .47" WC vacuum switch is bad. I tested vacuum, which is more than adequate (probabbly more than 1" WC). I am struggling to find exact replacement online (Honeywell 49L9001 0.47" WC)
Would it be OK to use a 0.50" WC switch??
Would it be OK to use a 0.50" WC switch??