Schluter® KERDI-DRAIN FLANGE KIT 2" PVCThe 2" PVC bonding flange for KERDI DRAIN is your waterproof connection point between the drain body and the shower's membrane envelope. The large fleece covered flange bonds directly into the same thin set mortar as your KERDI or DITRA membrane when the tile goes in, the drain and the membrane are a single waterproof system. PVC with a 2" outlet is the most common configuration for Canadian residential shower construction. Most Canadian homes built