The water-to-water double wall heat exchanger is a stainless steel water-to-water, domestic water heat exchanger with 3/4" FIP end ports and 3/4" FIP side ports. Features a spiral turbulation design. Install on existing water heater for thermal circulating heat transfer. Fittings Kit (p/n 2053) or Push-fit Fittings Kit (9263) are available separately for easy installation.
Note: The 5600017 Heat Exchanger replaces part number 318.
Note: Call for information on ordering the double wall water-to-water heat exchanger.