Wedi Niche 16x22Wedi prefabricated niches are made from reinforced 1 2" XPS foam building panels for durability and come in various size options. The perfect fit for all your shower necessities, our niches install quickly and safely and integrate flush into the wall panel assembly with Wedi fasteners and Wedi sealant. Shelves, included in some models, are flexible and can be installed exactly where they will fit your design best. All Wedi products carry 10 years