Mirro Pressure Cooker Model “598M or M-0598”. Parts List for Mirro Matic “598M or M 0598” Pressure Cooker. Mirro® parts for the Mirro® model “598M or M-0598” may be ordered on-line using the links below. Mirro 9892 Gasket 9892$11.89 Mirro 9898 Pressure Regulator 9898$17.95 Mirro 9894 Vent Tube 9894$9.95 Mirro 9888 Metal safety fuse M9888$7.99 6 3/4 in. dia Canning Rack 341$7.49 8 in. dia. Canning Rack 360$8.95 Stainless Steel Steamer Basket 9 1/2 in. 085665$21.99 Mirro 9709 Lift Pin S-9709$5.99 Mirro 8 quart Model 598M or M-0598