This register head is used when ducting the two supply (outlet) vents of the Santa Fe Max Dry XT Dehumidifier. This part acts like an adapter when connecting the dehumidifier's flex duct tubing to existing ductwork through an air register. Other components needed for proper ducting include the Max Dry XT Supply Duct Kit, 10-in. Flex Duct, and a 10-in. Register Grille.
Note: If you wish to only duct one outlet vent, you should leave the additional vent uncovered and unblocked. No additional CFM will be gained by blocking the other vent, and the unit was not designed to operate with only one vent flowing.