Citrus Magic Pet Litter Box Odor Eliminator Fresh Citrus, 40-Ounce Eliminate offensive litter box odor and freshen the air in your home Convenient pour our spout for less mess and easy application Great for use with multiple cats while extending the life of your litter Add 1/4 cup per ten lbs. when changing litter, or sprinkle evenly over the litter when cleaning and mix in 40-Ounce shaker