First shown is a Duncan two element watthour meter, Type MG-2PT, with a reinforced terminal cover and element indicators located on the left and right of the meter element inside the meter. Second shown is a Duncan two element Type MG-2A with a porcelain terminal. The stators inside these meter are located with one to the rear of the meter and one to the front of the meter. The MG-2A operates nicely, but I'm not too sure on how to wire the MG-2PT. The MG-2A is a network meter, while the MG-2PT is a polyphase meter. {etome}