Alfix 46 FIX/J/30 is part of the Alfix 46 line for installing luxury vinyl tile (LVT) floors of thicknesses from 5/32" to 1/4" (4 to 6 mm). Specifically, the FIX/J/30 profile transitions floors of the same height. Like all solutions in the Alfix 46 line, FIX/J/30 comprises a top profile in anodized aluminum, secured with screws in the same color as the anodized aluminum, on a natural aluminum base.