Schluter-RONDEC-CT is a double-rail edging profile for countertops to be fitted with a ceramic or dimension stone tile covering. The profile features a trapezoid-perforated anchoring leg that is secured in the mortar bond coat beneath the tile, while the face of the profile features a recessed section with dovetailed grooves to which field or accent tile is bonded. The top and bottom edges of the profile are symmetrically rounded 1/4" (6 mm radius) and match the RONDEC profile. The 1-9/16" (39 mm) vertical leg of the profile hides the exposed edge of the sub-assembly. The integrated joint spacer establishes a defined joint cavity between the tile and the profile. The profile is available in anodized aluminum with various surface finishes to allow for decorative design and interesting accents. Matching inside and outside corners are available. RONDEC-STEP-CT is sold per 8' piece