24 in. L x 48 in. W x 4 mm Thickness Corrugated Plastic Clear Twin Wall Roofing Panel - 48pc - On Sale - Bed Bath & Beyond - 38023295
Ejoy 48 in. L x 28 in. W x 0.31 in.Thickness Corrugated Polycarbonate Plastic Clear Twin Wall Roofing Panel (Set of 6-Piece) TwinWall_TWPSC48x24_8mm_6pc - The Home Depot
AmeriLux CoverLite 26" Polycarbonate Roof Panel at Menards®