Hard Water Rinse Aid For dishwashers in hard water areas like ours! Low foam formula designed for fast drying. Vegan, Cruelty free and biogradeable. 500ml bottle. For directions and ingredients, please see picture of label. The bottle is re-fillable, please rinse and leave out when empty for collection. The Sandy Lane Farm team will carefully wash the bottles and re-fill with the same product on site, ready for the next customer.