Helping to remove limescale and neutralise odours, the Foam Fresh Citrus Zest Foaming Toilet Cleaner helps to clean and freshen toilets. A self-acting powder with refreshing citrus notes, simply sprinkle into the toilet to commence cleaning action.With a powerful cleaning action to penetrate limescale even under water lines, the Foam Fresh Citrus Zest Foaming ToiletCleaner helps keep toilets free from dirt and grime. For best results, the product can be left in the toilet overnight for a thorough clean.