I am reinstalling an above ground Hayward Skimmer Model SP1091WM. The inside threads are NPT 1-1/2inch. I want to take advantage of the external fitting. I have contacted Hayward 3 times their customer service doesnt know. I have contacted pool stores they do not know each other. Hayward may not even know, but it is disappointing. Iordered

Hayward SPX3200UNKIT Union Connector Replacement Kit for Select Hayward Pump and Heater. It was too big and I sent it back. I apologize for font differences. This text box is very uncooperative to me.
