OEM Piaggio Premium Air Filter for Vespa, Piaggio, Aprilia and Derbi scooters with Piaggio 50cc 4 stroke engine and 125 or 150 4 Stroke Leader air cooled engine.  If your filter looks like this one, it is this one. 

This is a genuine Vespa  Spare Part in original Piaggio Packaging.  Pre-oiled for your pleasure. 

APRILIA Sportcity 50

APRILIA Sportcity 125

Aprilia SR50 Motard

PIAGGIO Fly 50 4 Stroke

PIAGGIO Fly 150 2 VALVE to 2012

PIAGGIO TYPHOON 125

Piaggio Typhoon 50 4 Stroke

VESPA LX 150

VESPA LX 50

VESPA LXV 150

VESPA S 150

VESPA S  50

VESPA PRIMAVERA 50

VESPA SPRINT 50.