The Sparco aquamix adjusts, maintains and limits the hot water temperature to the user's desired setting. In Domestic applications It makes the use of hot water safe and saves money. Domestic applications: domestic hot water systems; (from Tankless heaters or storage tank) showers, sinks, baths, washing machines, solar and heat pump systems. Commercial applications: Commercial installations; nursery schools, schools' Shower installations, washing facilities, photo industry, process industry and wherever accuracy and energy savings are required. Size connection: 3/4" Npttemp range: 100-145° fmax GPM: 12cv: 3.2Dimension: a: 3.15B: 2.32C: 5.12