This is what's called a "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  Xtreme Clean series wet and dry vacuum cleaners.

Unlike the switch box for the Nilfisk IVB in grey IT DOES COME WITH THE LABEL.

Find the one for the GREY Nilfisk IVB7 and IVB7 series of Xtreme Clean wet and dry vacuum cleaners 

It is pictured with the rotary switch knob on it, and the auto auxillary tool socket fitted to it, and in the Nilfisk IVB version, it has the hose diameter setting for the audiable alarm, in the centre of this cover. NONE of these parts are included with the purchase of this cover part.

The brass fittings are only on the pneumatic version (31XC).

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!