Geekvape Poseidon Tank is an innovation based on Zeus Tank. Geekvape P Sub Ohm Tank features middle airflow leakproof system and three airway airflow control for precise airflow control. Geekvape P Tank has double-layer liquid chamber with shock-proof glass tube and is compatible with Geekvape Z series coils. Geekvape P is easy to refill from the top.