Horizontal or vertical installation - Field convertible to a right angle valve - Stem seal packing is replaceable under pressure - Memory indicator, pointer and scale - Schrader valve metering connections - The Taco Plus Two multi purpose valve combines all the valve functions that are normally required on the discharge side of a centrifugal pump in a hydronic heating or cooling system into one body. It is a shut off Valve, a non slam check Valve, a balancing valve, a flow metering valve, and now it is field convertible from a straight pattern to a 90 degree right angle pattern. In addition, the Plus Two multi purpose valves have low pressure drops, equal to or better than any valve on the market today, and the stem seal packing can be replaced under full system pressure.