Amazon has the Monster Energy Ultra Violet, Sugar Free Energy Drink, 16 Ounce (Pack of 24) for only $23.78 Shipped when you clip the 25% off coupon and use subscribe and save. Monster Ultra Violet has 10 calories and zero sugar but with all the flavor you’re accustomed to and packed with our sugar-free Monster Energy blend. Keep in mind, Amazon pricing can change at any time! Don’t wait to purchase this deal or it might be gone when you come back!