Pressure regulator maintains proper cooking temperature automatically. Cover lock indicator shows when there is pressure inside. Stainless steel body for long-lasting beauty and easy cleaning. Bimetal clad base for fast, even heat distribution. Includes ergonomic handles, cooking rack and instruction/recipe book. UL listed. Replacement parts including Sku No 680.3282 sealing ring, 699.2028 over pressure plug and 625.5236 pressure regulator sold separately.