DescriptionToilet Cleaner 20L (Bio D). Concentrated Toilet Cleaner This concentrated Toilet Cleaner has a refreshing, lemongrass-based scent, and like all Bio-D products is hypoallergenic and free from petrochemicals, phosphates, preservatives, enzymes and synthetic perfumes. Save cash and plastic by ordering our larger sizes! For best results, we recommend using the product under the bowl rim and leaving overnight, then using a toilet brush to remove the dissolved scale. You might also like to try... Method Cleaning products made from biodegradable, plant-based ingredients. Ingredients: 5-15% Acetic Acid. Below 5%: Anionic Surfactant, Polysorbate 20, Xanthum Gum, Citric Acid, Cymbopogon Citratus oil. For more information on our ingredients policy please see hereIngredients5-15% Acetic AcidReviews