Based on this product's specifications, here are some alternatives and similar models
Lapp SKINDICHT MR-M ATEX Brass Nickel Cable Gland Reducer M63/M50
Summary description:
The Lapp 52104576 SKINDICHT MR-M ATEX is a high-quality brass, nickel-plated cable gland reducer designed for secure cable management in industrial environments. This set includes 5 pieces, featuring M63 to M50 thread sizing. It provides reliable protection and durability for electrical installations requiring ATEX-certified components, ensuring robust performance in demanding technical applications.