Bette Air 1 x shower tile dimensions: 900 x 900 mm rectangular edge height: 10 mm drain hole diameter: 200 mm corner radius: 5 mm installation variant: floor level material: glazed titanium steel non-porous surface. For installation, we recommend the Universal installation system with an adjustment range of 67 - 205 mm (to be ordered separately). From a side length of 1000 mm, we recommend using a support foot set BetteAir B57-0406 (to be ordered separately) including sound-reducing separating foil.