Rinnai N Series Multiple EZ Connection Cable - 3 Metres The Rinnai N Series Multiple EZ Connection Cable is a real upgrade for your N Series continuous flow water heaters - lets you plug in and sequence not one but two Rinnai N Series continuous flow water heaters into one super smooth system. This clever little cable lets the heaters really talk to each other - because they're able to monitor the water flow rate and switch the lead heater on and off automatically through their PCBs. This clever bit of sequencing does a few pretty key things: stops one heater from getting worn out, gives the whole system a decent reliability boost, and means you get consistent hot water delivery from both units. If you've got a high water demand setup, whether it's in the home or light commercial space - then this cable will give you a pretty