1.5" heater union socket with 50 mm F exit

This 1.5-inch union is compatible with the vast majority of 1.5-inch MBT hot tub heaters found in Europe, as well as many other spa heater brands. The outlet is 50 mm female.

This part is joined to the heater using a split nut and a gasket.

Dimensions
Outside diameter of thread : 62 mm or 1.5-inch MBT
Inside diameter: 50 mm (female socket for 50 mm pipe)

Part numbers
Waterway: 417-4197