PROVA DRAIN PLUS is a versatile and functional drain system. The adapter ring inclusion connects easily to existing 3-piece/clamping ring drains that are difficult to access or remove, providing time and cost savings! The drain body can also be used without the adapter, making it the perfect choice for any new installation project. PROVA DRAIN PLUS is coated with PROVA-BOND surface treatment technology, which provides a strong, and reliable bond between the drain flange, mortar, and shower pan. This kit includes a 304 stainless steel drain grate along with a height-adjustment collar and ring for adapting to multiple tile thicknesses.