Based on this product's specifications, here are some alternatives and similar models
Kopos 4840 KA External PVC End Cap for 40mm Conduit
Summary description:
The Kopos 4840 KA is an external PVC end cap designed for 40mm diameter conduits. This protective fitting ensures a secure and clean finish for cable management systems, preventing dust and debris from entering the pipe. Made from durable PVC material, it provides reliable protection and is suitable for professional electrical installations in various environments.