A 1″ Furnace filter will clean the air for your furnace, but a 5″ Air Filter will clean the air for us. We all want to breathe clean filtered air, just as we all prefer to drink clean filtered water. On top of clean air for us, dust particles that are filtered from the air before they come in contact with your furnace and/or air conditioner’s evaporator coil will contribute to a long life, reliable and efficient heating and cooling system.

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