Ideal for drip irrigation zones, operates at flows as low as 0.5 gpm. Includes an external bleed feature, flushes out dirt from the supply and lateral lines during new installations or repairs. Any debris passes through the valve rather than becoming stuck in the valve. Also includes a high-quality 24 VAC solenoid with 18 in lead wires for automatic operation and easy installation. (3/4 in male thread inlet and outlet).