The Freemax MaxPod Replacement Pods features a 2ml refillable capacity with a silicone-stoppered side fill system. https://www.vapeuniverse.co/products/freemax-maxpod-ns-mesh-pods?pr_prod_strat=pinned&pr_rec_id=ebddbb45c&pr_rec_pid=8295891403004&pr_ref_pid=8295740276988&pr_seq=uniform