The main benefit of the 30 centimeter connecting tube is the sealing and security it provides in toilet bowl installations. With this product, your installation has greater resistance and a guarantee that no water will leak. Designed to be applied to all toilet models that have a horizontal water inlet, the tube connects the toilet bowl to the water installation behind the wall, in a simple and easy way without the need for any type of equipment. It's the perfect fit that guarantees water to enter your basin safely.