Schluter DITRA-DRAIN-STU – 3-1/2″ x 16′ 5″ – Self Adhesive Tape, STUVKB90/30M
It provides dependable waterproof protection in tiled areas such as showers, wet rooms, steam rooms, balconies, and terraces. Made by Schluter Systems, a global leader in tile installation, waterproofing, and uncoupling technology.