Water Heater Booster, Electric or Gas Tank, Install: Inline or Wall Mount, Indoor, Minutes of Hot Water in Shower: 45% Increase, Power Supply: 240 Volt, Single Phase, 7.2 kW, 30 AMP Double Pole Max. Breaker, 120° Preset Outlet Temp., 3/4 inch FNPT inlet with 3/4 inch MNPT outlet Water Connections, Dimensions: 8-1/4 inch H x 12-5/8 inch W x 3-5/8 inch D, Activation Temperature: 80-130°F, Outlet Temperature: 80-140°F, Warranty: 5 Year Primary Warranty, Standards: ANSI/NSF 372 by WQA ETL listed to UL 499/CSA