Dri-Pak Citric Acid Powder - 250g Known and trusted for its descaling properties, citric acid is a quick and easy solution for everyday cleaning. Use it to keep your kettle, washing machine and other appliances in top condition and to remove limescale from your toilet bowl, taps and more. Dri-Pak focus on traditional, trusted methods for cleaning and always use simple, sustainable ingredients to help you make the most of everyday cleaning.