Mirro Pressure Cooker Model “494M or M-0494-35”. Parts List for Mirro Matic “0 494” Pressure Cooker. Mirro® parts for the Mirro® model “494M or M-0494-35” may be ordered on-line using the links below. Mirro 9898 Pressure Regulator 9898$17.95 Mirro 9894 Vent Tube 9894$9.95 Mirro 9888 Metal safety fuse M9888$7.99 Mirro 9890 Gasket M9890$10.49