The SMOK Nord C Empty Pod has a capacity of 4.5ml and is intended specifically for the SMOK Nord C Pod Kit. https://www.vapeuniverse.co/products/smok-nord-c-empty-pod?pr_prod_strat=e5_desc&pr_rec_id=1d7eb50c0&pr_rec_pid=8191248924924&pr_ref_pid=7846691602684&pr_seq=uniform
