Rinnai unit for hot water system in the house. With all the connections, water wires, and connectors.
Very good condition
5000 Yen only! including all the wires and connectors
Check the photos:
https://drive.google.com/drive/folders/1MS72MlmkW7m_K_umnz-dqaJZDIxMqVPr?usp=sharing