Infant Replacement Replacement Lungs / Stomach (3 Pk.) by Nasco Healthcare $52.95 101-121 Infant Replacement Replacement Lungs / Stomach (3 Pk.) / 101-121 / Cart Title Infant Replacement Replacement Lungs / Stomach (3 Pk.) Product ID 101-121 CheckoutType Cart Add to cart Infant Replacement Replacement Lungs / Stomach (3 Pk.) Ship weight 1.25 lbs.