Roman Orbital Two Quadrant Shower Enclosure Twin Sliding Doors 14029 Specification Frameless 6mm thick doors with smooth running roller bearings. Height 1830 above tray. Ergonomic feature handle on inside and outside of unit. Full length colourless PVC & aluminium seals. 6mm thick curved panels bond directly to shower tray. 900 x 900mm with 20mm width adjustment each side to suit tray RT09.