Technical specifications Item name: S/28/39B; M/38/57B; L/56/91B; XL/87/150B Applications : Balconies and terraces / Outdoor spaces Notes : Base + screw S/28/39B: adjustable from h 28 to 39 mm M/38/57B: adjustable from h 38 to 57 mm L/56/91B: adjustable from h 56 to 91 mm XL/87/150B: adjustable from 87 to 150 mm Membership categories Accessories for the layingSupports for raised floors Ask for informations See the video tutorials Accessories available Extension for PP Level - h. 10 mm Extension for PP level DUO MAXI - h. 80 mm Adjustment key Related products Levelling disk for head Wall clip PP level DUO MAXI - Head for aluminium joist Extension for PP Level - h. 10 mm Rubber mat PP Level DUO® - Aluminium joist PP Level DUO® - Head for 2, 3, 4 mm joints Perimetral clip for double joist system