• Communication cable kits consist of wire, Molex connectors and jumpers All units within the cascade system must be of the same type Different types of tankless water heaters cannot work as a cascade system OEM genuine factory authorized parts

Link 2-Rheem® Performance Platinum 9.9 and 11 gpm tankless water heaters with the built-in recirculation pump with the cascade communication cable kit. Linking 2-units together significantly increases the water heating capacity for your home. When cables are installed and units are linked, the master water heater unit controls both water heaters for improved performance.