Replacement air filter element for original air boxes. Suitable for bikes listed below as well as the X8 and X9 models: Vespa-GT 125 ZAPM31 (Leader) Vespa-GT 200 L ZAPM31 (Leader) Vespa-GTS 125 ZAPM31 (Leader) Vespa-GTS 125ie Super 10- ZAPM45 (Quasar) Vespa-GTS 125ie Super Sport 11- ZAPM45 (Quasar) Vespa-GTS 250ie ZAPM45 (Quasar) Vespa-GTS 300ie Super Sport ZAPM45 (Quasar) Vespa-GTS 300ie Super ZAPM45 (Quasar) Vespa-GTS 300ie Touring ZAPM45 (Quasar) Vespa-GTV 125 ZAPM31 (Leader) Vespa-GTV 250ie ZAPM45 (Quasar) Vespa-GTV 300ie Vie Della Moda ZAPM45 (Quasar) Vespa-GTV 300ie ZAPM45 (Quasar)