Sorry, this is no longer manufactured.
Adapts old-style Laing pumps (with flange) to barbed connection, to connect to new-style Laing heaters.
The unique Laing 74359 circulation pump (which is now discontinued) bolted directly to a Laing J-heater. If you have one of these old pumps and need to replace your heater, you will need this adapter to connect to the new style J-heater.
The flange style pumps and J-heaters were used by a few hot tub manufacturers, but most commonly Pacific Spas.