SCHLUTER KERDI TROWEL - 1/8in x 1/8 in Square Notch

Schluter Kerdi Square-Notch Trowel - Ideal for Installing Kerdi - 1/8-Inch X 1/8-Inch, 1-Pack - TRL-KER

Schluter Ditra Square-Notch Trowel - Designed for Ditra System Installation - 11/64-Inch X 11/64-Inch, 1-Pack - TRL-DIT

Schluter Ditra Heat/XL Square-Notch Trowel - Ideal for Installing Ditra-Heat and Ditra-XL - 1/4-Inch X 1/4-Inch, 1-Pack - TRL-DHXL