TWIN AIR UNIVERSAL FILTERS Twin Air has introduced a line of universal filters to fit almost any carburettor. In all there are 13 filters of various shapes and dimensions to fit almost any application. Each one comes with a rubber flange for custom length and a hose clamp to seal the filter properly to the carburettor. This allows you to shorten the flange down as far as 1/2 inch and can be altered with one easy cut.
