It comes with several variations to fit water pumps with different outlets:
Variation 1: 1/2 push-in connector. It comes with an 1/2 inch diameter push-in connector with no thread, for water pump with 1/2 push-in outlet. These pumps are generally rated at 50 - 150 GPM.
Variation 2: 1/2 NPT connector. It has an 1/2 NPT connector (with 0.84 diameter) and fits pumps with 1/2 NPT outlet or PVC fittings with 1/2 FIP connector.
Pump is not included.
Please let me know if you need a special connector to fit your system, e.g., 1/4 MPT,