How to locate the model # on your Procon pump The 3rd digit of the model # designates the Series of your pump. Series 1,2 and 3 pumps have 3/8” ports, and weigh about 3 lbs. (Series 1 & 2 are brass, 3 is SS) Series 4 and 5 pumps have 1/2” ports and weigh […]