Rheem - RTG20040 - EZ-Link 6-ft. Long Cable with Connectors and Wire Support Clamps 90 Degree It replaces the die-cast upper

It replaces the die-cast upper housing used with the six-outlet lower body in five- and six-zone valve configurations

Big Frog Supply identifies the exact dimensions

Designed for indoor use only

Designed for direct faucet or under sink installation

The SAM (Seal-A-Matic) Check Valve is a must-have

Rheem - RTG20040 - EZ-Link 6-ft. Long Cable with Connectors and Wire Support Clamps 90 Degree It replaces the die-cast upperEZ Link Cable 6 ft. Long Cable with Connectors and Wire Support Clamps Connect two tankless water heaters together in a manifold. This will allow two heaters to communicate together and operate as a single unit. Perfect for when one tankless is just not enough. Only two units may be connected together with the EZ Link cable. Only Identical models: all RTG 95, RTG 84, RTG 64, RTGH 84, RTGH 90, and RTGH 95 models can be used with the EZ Link Cable.