Based on this product's specifications, here are some alternatives and similar models
Connector Heatpex ADL 200 for ARIA ADUROADURO system by Heatpex
Summary description:
Heatpex ADL 200 connector designed for the ARIA ADUROADURO system by Heatpex. This mechanical connector (model ADL 200) is intended for joining compatible system components, ensuring secure hydraulic or structural connection within the ARIA ADUROADURO product line. Suitable for professional installation in heating, plumbing or ventilation assemblies where manufacturer-matched parts are required.