This is the GREY Nilfisk IVB part, what's called the "switch box"

In effect, it's the Y shaped piece in the top centre of the the black cover on top of the  and the

It is pictured with the rotary knob on it, and the auto auxillary tool socket fitted to it, and has the hose diameter setting for the audiable alarm, in the centre of the cover.

NONE of these other parts are included with the purchase of this switch box.

Find the adhesive grey label

Find the BLUE Nilfisk-ALTO version

At the moment standard postage within Australia, is capped at a maximum of $25, so maximise the saving on postage and buy something in related items below!