Based on this product's specifications, here are some alternatives and similar models
Erko ACL 16x16mm Al-Cu Sealed Reduction Connector
Summary description:
The Erko ACL 16x16mm is a sealed reduction connector designed for reliable electrical connections between aluminum and copper conductors. This high-quality terminal ensures optimal conductivity and protection against corrosion in various electrical installations. It is engineered for durability and secure performance in professional power distribution systems.