FilterLock Filter Slot Seal – Seal Cover for Any 1” Furnace Filter, Up

FilterLock Filter Slot Seal – Seal Cover for Any 1” Furnace Filter, Up return air support box with filter slot This is just one of many ways to form a return air box or plenum for an electric air handler to return to the feature slot Install the filter media box between the return air plenum and the air handler box 2 Slide the filter into the slot and place the filter

return to the feature slot This return air support box is for use with systems where the return air must come in underneath the furnace or air handler The support box can hold a

return of kong megaways slot review slot, these are not provided with this product For an option with removable channels for multiple filter sizes, see our FRB filter rack base; Come in a HVAC Plenum & Filter Boxes · 20 X 20 X 30 WFilter Rack Return Air Duct Plenum-26 Gauge, HVAC Duct Work · 90 Degree Elbow 20 x 20