Protect Your HVAC With A Filter Slot Cover - Filter Lock

Even though it's sized correctly, we still cover the filter perimeter with blue painters tape Lots of air would find its way around the filter

air to the under part of the lower filter , and partly as outlets for the slot 2 ft long , 35

airbet slot If your filter slot on your furnace is exposed, dust and dirt can bypass your filter and go directly

air slot air filter is possible in this case Left side: air_ Right side: air_ It seems to me that if the width of the stand