SEAMLESS CONTINUITY Available Sizes S-3/1 927 (900mm x 2700mm) S-3/3 927 (900mm x 2700mm) S-3/1 924 (900mm x 2400mm) S-3/2 924 (900mm x 2400mm) S-3/4 924 (900mm x 2400mm) Product Details Perforation Type: Slotted Perforation Size: 4mm x 14mm Panel Thickness: 12.5mm Color of Non-Woven Fabric: Light Gray Open Rate: 12.2% – 15.9% NRC: Up to .70 Product Data Sheets: S-3/1 927 (900mm x 2700mm) S-3/3 927 (900mm x 2700mm) S-3/1 924 (900mm x 2400mm) S-3/2 924 (900mm x 2400mm) S-3/4 924 (900mm x 2400mm)