HVAC Return Air Filter Box : 9 Steps

30 return air support box with filter slot return air support box with filter slot 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 return to the feature slot 74846 Southwark FB Furnace Support Box with Filter Slot, 20 x 25 x 1 Inch, 21 Inch W x 18 -12 Inch H Ready To Ship! 17 In Stock Now! Check

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