IMUSA 4-Qt Aluminum Pressure Cooker: * 4 safety pressure systems * Safety valve for back-up pressure release * Pressure regulator doesn"t allow you to open the pot while pressure levels are unsafe * Pressure control allows you to maintain and release pressure when needed * Overpressure safety window * Reduces cooking time by up to 70% * Elegant high-gauge aluminum * Maintains nutrients and minerals in food * Model# A417-80401W