Schluter® KERDI-SHOWER-KIT 48" × 72"This is the kit for a proper primary bathroom shower 48" 72" gives you a long, open rectangular footprint with room for a bench, a rain head, or just the luxury of not feeling cramped. If your client is upgrading a master bath, this is the size that actually delivers on the "spa like" promise. Includes the KERDI SHOWER T pre sloped foam tray, full KERDI waterproofing membrane roll for walls, KERDI BAND strips for seams and corners, and hardware.