Presto 9902 Pressure Cooker Sealing Ring $9.99 85608 Vent Pipe $9.49 Presto 9915 Pressure Cooker/Pressure Canner Overpressur $3.99 85407 Interlock Assembly $8.99 Presto 85341 Pressure Cooker Cooking Rack $7.49 Presto 6900 Control Master heat control $14.65