This 3/4 inch lead free flow measurement valve monitors system flow in low to medium flow rate HVAC units, providing a highly accurate flow measurement. It consists of lead free body construction with bi-directional, positive shutoff ball valve design, blow-out proof stem, a position indicator, memory device, checked metering ports with drip caps, two pressure taps, integral drain ports, solder connections, and a drain plug. It has a compact size which allows for easy installation and access...