Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater

Key Features:

External adjustable digital thermostatic control with LED display (+/- 1 degree accuracy)
Durable Copper immersion with two heating elements, field serviceable, and self-modulating power control
Simple installation with 1/2 NPT adapters included; side 1/2 inch Compression water connections
99.8% energy efficiency with external controls for adjusting temperature in 1°F increments
Water-Saver Shower Head – 1.5 GPM flow rate
Threaded for easy replacement, digital temperature display, 54 A, 13kW Model, Flow Rate up to 3.17 GPM