The USG Durock 72" x 72" center drain shower tray features a presloped pitch down to an center drain location. It is a 2 piece shower pan that is used to create a walk-in tiled shower. The 72" x 72" Shower Tray includes a shower tray disk, which makes connecting a USG Durock Drain Kit Assembly possible. The USG Durock shower trays are completely customizable and can be cut down to size. Installs with either modified or unmodified thinset mortar. This item is perfect for the home owner that would like to remodel their bathroom and add a walk-in tiled shower system. Please note that all USG Shower Pans will need to be covered up with a waterproofing membrane before installing tile. The 72" x 72" Shower Tray will speed up the process and save you time from having to mix up mudset and building a pitch into a mortar bed. Price listed is for (1) Durock 72" x 72" Shower Tray with Center Drain Placement.