Which is the hose diameter of the WASPT unit?
For the WASPT washer pump which is the diameter of the water pipe?
The water pipe external diameter is 6mm, with internal diameter 4mm.
It is not indicated in data sheet and manual because the water pipe is supplied with the product, so there should not be the need to know this data.
In any case if it is necessary to change the water pipe or to use existing water pipes here you have the data to be compatible with the products.