Return Air Box, Vent & Ducts

Return Air Box, Vent & Ducts return air box with filter slot The best place for a furnace and ac air filter is right in front of the equipment If you put a filter in the intake in wall or return to paris slot In this case, the return vent filter will be the primary air filter After putting the new air filter in its slot, close the return vent

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return air support box with filter slot filter size, measure the air intake Find the slot that holds your air filter It's usually located in the blower compartment or return duct  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