I had a furnace installed recently Afterward, I found they didn't put in

slot cover plate and had the filter stick out several inches! I see there are companies that make custom made filters, just seems an

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furnace filter slot If you can't find a filter slot on your HVAC unit, try looking in the vents that blow air into your rooms Some systems have filters in the return air vents

what the fox megaways slot cover of that box out When you pull that cover out, you'll see a furnace filter Or maybe you won't Maybe they didn't even have one in there But you will