G'day guys, can't find what I'm looking for, so here goes.

Looking at just changing the ATF soon, so was phoning around for prices for all the bits. Anyway just out of interest called the local Nissan dealer and they advised that a filter shouldn't be required as they were infact washable. How interesting I thought!!!!
Does anyone know if this is indeed true and if it is true, how would you wash them. Serious answers please because this could save me $100 that I don't really have.

Cheers
Adrian