100% waterproof and leakproof. Hygienic, easy to fit and easy to clean. Easy installation is one of the things that sets aquaboard shower kits apart from the competition. You will see just how easy it is when you connect two shower panels with an aquaboard Butt (H) Joint. These joints are specifically designed to fill in the gaps between panels for both aesthetic beauty and keeping water out. Installation is as simple as applying the back half of the joint to the wall where two panels meet. Seal the panels to the joint and then apply the decorative cap to create a finished look. There is nothing complicated or labour-intensive here. aquaboard shower kits are 100% waterproof and leakproof. These butt joints are a big part of that. As with everything from aquaboard, the butt joints are durable and long-lasting. They can be used with any aquaboard shower kit. And if you have any questions before or after your purchase, feel free to contact our customer service department. First time buying wall cladding? Learn more and compare products here.