Schluter trowels are engineered to support proper mortar coverage and efficient installation across Schluter membranes and shower components. Square-notched trowels are designed for installing DITRA, KERDI, and DITRA-HEAT membranes, while the U-notched MULTI-TROWEL is intended for installing shower trays, benches, and curbs. DITRA-TROWEL: 11/64 in × 11/64 in (4.5 mm × 4.5 mm) square notch
