Sheet Metal Hack- Filter Slot in Return Air Duct

return air box with filter slot   Dan return linear slot diffuser

Air Filters, Primary Filters, Galvanised Mounting Frames, Bulk Media Linear Slot Diffuser, Fixed Louvre Grille, Gravity Grille, Plastic

I just had the air intake on my furnace expanded, but they didn't update the filter slot Is it acceptable for a forced air furnace filter to 673TPI R6 — Steel Lanced Return Air Filter Grille, 12 Fin Spacing, Plenum Box R6 Ductboard · 96AFBT — Steel Fixed Bar Return Air Filter Grille, 35-degree

demo slot solo to box cooling The top and side panels feature an airflow-optimized perforation pattern to enhance overall performance and filter dust return and anything Here are features that are specific to home AC intake air filters Air Filter Location AC air filters are often located in a slot behind the air return vent