Here you go (see how to videos list on right side of page)Is there a tut online for a DIY install of the 5inch filter modification?
my HVAC guy wants 450 to do this
The install is typically customized to your particular set-up. The filter could be on the bottom of your unit, the side, on somewhere along the return path. It all comes down to accessability first and preference 2nd.thanks that seems to be what im looking to do - these are the once a year filters?
do they typically install in the same location as the standard filters?