The ARDEX TLT Niche is a prefabricated open storage space that is installed within the wall of your shower. These niches are thin, ultra-lightweight, waterproof and vapor-resistant. Additionally, the niches are manufactured out of the same foam as the ARDEX TLT. Building Panels with a proprietary blend of synthetic polymer mortar and an alkali-resistant fiber mesh, making them strong and durable. Each niche comes with an adjustable shower shelf. Easy to install and ready to tile.