Find the DV32 (Serial# with Robertshaw Valve [ 21na0001 - 21na3601 ]) Majestic Gas Direct Vent Fireplace in the diagram listings shown below. Each diagram will take you direct to the DV32 (Serial# with Robertshaw Valve [ 21na0001 - 21na3601 ]) Majestic Gas Direct Vent Fireplace repair part listings and part views for your model.