Ecozone Water Softener Tablets protect your Washing Machine from Limescale. Each bundle contains 6 packs of 18 tabs. Regular usage can; Save energy by preventing limescale encrustation of the heating element maintaining an energy efficient appliance. Save you money by reducing the detergent dosage. Prolong the lifetime of the heating element. Prevent the drum & workings from becoming incrusted with scale. Help keep a washing machine in Tip Top clean condition. Do not contain any toxic or harmful ingredients, are vegan & are not tested on animals Washing machine manufacturers recommend regular use of Anti Limescale tablets. Just add one tablet to your laundry with every wash at any temperature with your regular detergent