Elsan Blue is a highly effective toilet cleaner specifically designed for use in caravans, camping, and boating. It exceeds British Standards, ensuring superior performance. This powerful formula kills bacteria, eliminates unpleasant odors, and leaves a clean, fresh scent. Elsan Blue is the only toilet cleaner that exceeds British Standards, making it highly popular for caravans, camping and boating. Toilet cleaner for caravans, camping and boating. Kills bacteria. Eliminates odours. Leaves behind clean fresh scent. Exceeds British Standards. Quantity: 2 Litres.