UV Resistant ASA Synthetic Resin Roof Tile Water Treatment Plant Roof for Filter Hall Cover A water treatment filter hall roof sits under full sun and chlorine vapour, and a sheet that chalks there sheds powder into open filter channels during service. Product name HENCING ASA synthetic resin tile Product color Brick Red, Purplish Red, Dark Green,Bule,Grey Length Customized Product thickness 2.5mm/2.8mm/3.0mm Product hight 30mm Pitch distance 160mm Efficiency 960mm Profile