Air filter slot in return air plenum

That being said, if it bothers you, have a sheet metal cover made or rig something up slot into which the furnace filter is inserted Save

metal pin Separates prongs of replacement scoops with pin , and secures furnace Removes processed slides from con- veyor Inspects finished

metal slot It effectively covers the filter slots situated at the side or top of metal return air ducts It can be trimmed to fit over various sizes as necessary

metal slot drain furnace filter The problem is you might think you are doing everything correctly but if you have