Pentair 355077Z 1/2" PVC Challenger Pool Pump Diffuser NPT Connection
It fits models CFII-NI-1F, CFII-NI-3/4F, CFII-NI-1-1/2A, and CFII-NI-2A. Manufacturer : Pentair. Designed to ensure efficient operation of the pool pump system. Product Type : Pool Part. Manufacturer Part Number : 355077.