The L77 Lift & Slide Heavy Duty System from SASHCO provides a robust and elegant solution for doors and windows, featuring a Thermal Break HP design with double, triple parallel, lift & slide, and meeting style opening options. With a 60mm glass panel, 40 dB acoustic insulation, 1000 Pa wind load resistance, and a 400 Kg load-bearing capacity, it offers unmatched strength and sound control. Compliant with ASTM E331, EN1207, EN1208, EN12210, and EN12211 standards, it’s perfect for heavy-duty projects requiring energy efficiency and modern design.