Check out any of the seventeen Air Cleaner components enlisted.
Parts such as the Air Cleaner: Tube,breather, Plate,air Funnel, Screw,pan,5mm, Tapping,5x20 are included in the St1300 Paneuropean 2002 (2) England Air Cleaner parts fiche.
The Air Cleaner is made up of components including this Case,air/c which is the most expensive.