Schluter® KERDI-SHOWER-KIT 72" × 72" — Complete Large Format Shower SystemA 72" 72" shower isn't a bathroom feature it's a statement. At 6 feet square, this is a genuinely spa grade shower footprint, and the waterproofing system behind it needs to be built to match. The KERDI SHOWER KIT 72" 72" gives you every component for a sealed, warranty backed, professional quality shower assembly sized for a build that's going to impress. The pre sloped EPS foam tray replaces a traditional mortar bed, cutting days off the schedule.