Instant hot water heating tank designed for use with Waterstone Hot & Cold and Hot Only faucets. Specifications:Adjustable temperature 140F to 190F (60C to 88C).Insulated ½ gal. Stainless Steel tank.Compatible with RO filtration systems.Up to 60 cups per hour capacity (2.3L).Integrated vent, works with any Waterstone Hot only or Hot & Cold filtration faucet.Heating element - 780 watts, 6.5 amps, 120 volts, 60 Hz.Inlet water pressure, 35 psi min, to 60 psi max.Minimum inlet volume (filter output), 1 gal / min.Manufactured by Anaheim Manufacturing.Dimensions- 11 1/4H x 6 3/4 W x 8 1/4 D.2 year warranty.