SCHLUTER DITRA TROWEL - 11/64 X 11/64 SQUARE NOTCH<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>For DITRA use the DITRA trowel， which features an 11/64" x 11/64" (4.5 mm x 4.5 mm) square-notched design， is recommended.</li><li>It is good practice to periodically lift a corner of the membrane after embedding it in the thin-set mortar to check the fleece for full coverage.</li><li>DITRA-TROWEL features a 11/64" x 11/64" (4.5 mm x 4.5 mm) square notch</li></ul></div><img src="http://ecx.images-amazon.com/images/I/414f0qZqp7L.jpg" noproxy>