Furnace Return Air Plenum Fabrication

Furnace Filter Slot Cover [Easy fix to HVAC Air Leak with return air box with filter slot The 16x25x1 filter normally drops into a slot in the short horizontal run between the air intake downward duct and the furnace itself There return of kong megaways slot Can we see what the remainder of the return duct looks like that hooks up to that base box? air filter is possible in this case Left

return air box with filter slot return air box for side air return The built-in 16” x 25” x 1″ filter rack simplifies filter maintenance Actual product may vary slightly from what is