Atmor Hand Washing SINGLE SINK 3kw/110V, 0.5 GPM Point-Of-Use Tankless Electric Instant Water Heater with Pressure Relief Device and 0.5 GMP Sink Aerator, AT-900-03 Ideal for single sink application in areas with at least 57 ground water temperature Maximum flow rate 0.5 GPM (Gallons per Minute) = 45 F temperature rise. Slower flow rate = higher temperature rise.Max tested working pressure: 16 BAR (230 PSI) Requires a direct connection to a 30 Amp single-phase breaker. Required wire size: 10 AWG. Not a plug-in unit. Instant and endless hot water on demand without the wait or worry of ever running out Includes a 0.5 GPM Aerator for sink faucet and Pressure Relief Device (PRD)