Atmor AH-900-3 Hand Washing Single Point-of-Use Tankless Electric Instant Water Heater with Pressure Relief Device (PRD) and 0.5 GPM Sink Aerator, 3kW/110V, 3.5kw/110v, White An unlimited flow of hot water without the wait or worry of ever running out... Designed for handing washing SINGLE SINKS in areas with at least 57 degrees ground water temperature. Not for cold climates. Maximum flow rate 0.5 GPM (Gallons per Minute) = 45 F temperature rise. Slower flow rate = higher temperature rise. Requires a direct connection to a 30 Amp single-phase breaker. Required wire size: 10 AWG. Not a plug-in unit. Includes a 0.5 GPM Aerator for sink faucet and Pressure Relief Device (PRD)