Return Air Support Box w Filter Rack - Sheet Metal

This is just one of many ways to form a return air box or plenum for an electric air handler to

Return Air Support Box w Filter Rack - Sheet Metal Southwark SBF30 return air support box for 24 x 8 duct with filter slot for 20 x 25 filter, accommodates 1, 4 or 5 thick filters, 26 gauge galvanized tin

This is just one of many ways to form a return air box or plenum for an electric air handler to

return of the dead slot Return Policy: NZXT Return Policy A: Hi Keean, Unfortunately, there is no support for 120mm fans in the bottom of the case, only 140mm support

14 X 14 Steel Return Air Filter Grille for 1 Filter - Removable FaceDoor - HVAC DUCT COVER - Flat Stamped Face -White

return air box with filter slot support* the box may be providing to the air handler itself I don't know what's inside the box to hold up the air handler, or

Return Air Support Box with Filter Rack by Southwark Metal Mfg Co