Vaporesso LUXE PM40 Pod Cartridge is specially designed for Vaporesso LUXE PM40 Pod Mod Kit and can hold up to 4ml of e-liquid. To refill the pod a snap of top cap system is employed. The top e-liquid filling is carried out through a movable suction nozzle. LUXE PM40 Pod Cartridge adopts a transparent design, which makes it easy to check the status of the remaining juice, and can be filled quickly and easily without removing the pod. LUXE PM40 Pod has a unique four-level leak protection system, three silicone o-rings on the GTX coils, and an innovative pod design reduce the change of leaks. It also adopts an e-liquid self-circulation system for improved anti-leak function. LUXE PM40 Pod Cartridge can accept coils from the Vaporesso GTX Coil Series, installed in a bottom plug 'n' play fashion.