Based on this product's specifications, here are some alternatives and similar models
Baks WWSR50 Reinforced Cantilever Arm 751805
Summary description:
The Baks WWSR50 (751805) is a reinforced cantilever arm designed for reliable cable tray support and industrial mounting applications. This durable steel component serves as a direct replacement for the WW50 model, offering enhanced structural integrity for cable management systems. It is engineered for professional electrical installations requiring high load-bearing capacity and long-term stability in various environments.