Purchase a Furnace Return Air Box

Purchase a Furnace Return Air Box return air support box with filter slot Return Air Support Box with Filter Rack by Southwark Metal Mfg Co return to paris slot I've also sorted a housing for the stale air return that holds a 16x25x1 filter so I can pull the restrictive exchanger filters on both supply

return to paris 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 air box with filter slot Return Material Authorization · sps sps-support-productivity-case-studies icon Case Studies and Success Stories  Protect Your HVAC System: FilterLock is a patented two-piece seal system designed for use with 1” air filters that eliminates air leakage at the filter