... 3 times flow rate more than traditional zone valves3) 220V/240V AC, 24V AC, 110V/120V AC also availableFeatures: 1) Smooth flow, no ... , 3 times flow rate more than traditional zone valves3) 220V/240V AC, 24V AC, 110V/120V AC also available4) Tight close, no leakage5 ...