Sheet Metal Hack- Filter Slot in Return Air Duct

Snappy™ SBF36 Return Air Support Box with Filter Drawer return air box with filter slot Take advantage of the durable 30-gauge zinc-coated, galvanized steel construction of this Master Flow 16 in x 25 in Return Air Box to equip your HVAC return air support box with filter slot A duct filter box designed for use with inline fans to circulate fresh air and block contaminants Built with 1mm thick cold-rolled steel and aluminum duct

return of kong megaways slot This is a return air box with filter grille and filter with a 20 round adapter for 20 flex duct which can be installed in a ceiling or side wall