Schluter KERDI Kereck-F Preformed Outside Corner 2 Pack

The Schluter KERDI Kereck-F preformed outside corner seals a tricky spot in a KERDI waterproofing assembly — the convex corner where the membrane wraps an outside edge like a curb, bench, or niche return. Instead of cutting and folding sheet membrane by hand, you set a molded corner that fits the angle every time. It is built for tiled showers and wet areas handled by pros and confident DIYers.

Each Kereck-F is molded from KERDI membrane, so it bonds with thinset and ties directly into your KERDI walls and KERDI-BAND seams. This is the outside corner for convex 90-degree edges, and this pack holds 2 pieces, enough for a single standard shower. Press it into thinset and roll out the trapped air.

Pros who build KERDI showers keep these corners on hand. Tile Outlets stocks the Kereck-F corners and the rest of the KERDI system.