C7770A1006 | 6^ DUCT SENSOR RETURN AIR 20K TEMPERATURE SKU: C7770A1006 Parent Item Parent Item - Additional Cost Has Item Option Details C7770A1006 | 6^ DUCT SENSOR RETURN AIR 20K TEMPERATURE DetailsBackDetailsC7770A1006 | 6^ DUCT SENSOR RETURN AIR 20K TEMPERATURE