Smok RPM 4 Pods are empty refillable PCTG cartridges that can only be used with the Smok RPM 4 Kit. 

Two magnetic 2ml pod options are available.  RPM 4 LP2 Pod – Compatible with two LP2 Coils and RPM 4 RPM Pod – Compatible with all RPM coils.  The RPM 4 cartridge has an ergonomic duck-billed mouthpiece that allows for increased airflow and inhalation. 

SMOK RPM 4 Replacement Empty Pod Cartridge Features: 

• 4.5mL Nord 4 RPM & RPM 2 Pod Capacity
• Side Fill System – Rubber Stoppered
• Nord 4 RPM 2 Pod – Compatible with RPM 2 Series Coil
• Nord 4 RPM Pod – Compatible with RPM Series Coil
• Press-Fit Connection
• Duck-billed Mouthpiece Design
• Magnetic Pod Connection