The SKB 3i-M6U13-FRM is a rugged and highly durable 6U injection-molded rack frame designed to provide secure housing for rackmount gear in demanding environments. Measuring 13 inches deep, this rack frame is built from ultra high-strength polypropylene copolymer resin and is part of SKB’s 3i series, offering military-grade protection with a gasket-sealed, waterproof, and dust-tight enclosure. It features a compact and lightweight build while maintaining exceptional impact resistance and stability. The frame includes front and rear steel rack rails with 10/32 threaded inserts for convenient equipment installation and is compatible with SKB's 3i series cases, making it ideal for professionals in live sound, broadcast, and touring applications who need reliable and portable gear protection.