SMOK Nord 4 Replacement Empty Pod Cartridge 4.5ml, SMOK Nord 4 Pod Cartridge Short Description:Nord 4 Pod Cartridgeis designed for SMOK Nord 4 Kit. It can hold 4.5ml e-juice capacity. There are two types of pod for you to choose: RPM 2 Pod and RPM Pod. It adopts RPM 2 0.16 ohm Coil and RPM 0.4ohm Coil.