Smok Nord 4 Empty RPM Pods (Pk of 3)Smok Nord 4 Empty RPM Pods (Pk of 3) SMOK Nord 4 Pod Cartridge is a replaceable empty pod for SMOK Nord 4 Pod System Kit. The pod is refillable and you can just replace the coils without discarding the entire pod. Each pod holds up to 4. 5mL of your favorite freebase or nicotine salt e liquid, and pods can easily be filled via the rubber plug on the side of each pod. There are 2 different pods and they are compatible with different coil ranges: Nord 4