The Z/4 threshold profile for floors of equal level is part of Profix Thin, the system to lay LVT (Luxury Vinyl Tile) floating floors of thicknesses from 4mm to 6mm. Like the C/4 threshold profile for floors of different heights and S/4 end trim, Profix Thin Z/4 comes with different anodised aluminium and Alcrom® Plus finishes, and a wide selection of wood, stone, or cement decorations to personalize your profile. C/4 also has a top profile coupled to a PVC base.