AVATA cartridge comes with dual tank., Upper tank act as Spare tank, Below tank act as Main tank, The benefits are:, Anti leaking , The E liquid in the spare tank is fresh., #aspireavata Aspire Avata Aspire : le test Revue et analyse complte du kit Oneshot Media Aspire AVATA Starter Kit 15 ml An easy way to refill your E liquid., AVATA Cartridge has 15ml capacity., The tank above is for E liquid storage,, also lower the cartridge pressure which can prevent 99% of leaking., #aspireavata Aspire Avata Sigaretta Elettronica Guancia e RDL Regolabile 26W Svapo Kit Completo Batteria 1100 mAh, Pod 15ml, Coil 0.6, Indicatore Led Colorato, Tiro Automatico, Aria Regolabile (Black) : Amazon.it: Elettronica Aspire Avata Pod Kit Adjustable Airflow & 1100mAh Battery Aspire