This USA made air-cleaner is 2″ wide and 5″ diameter with an off set flange. It suits VM36, 38 Round slide carbs, TM non-pump 36 and 38mm carbs. The filter media can be washed and re-oiled. This light weight filter is great for unsupported applications. This filter has been specially designed and made for Mikunioz by S&B filters in the USA and has a Moz embossed rubber cover.