Arbiter 2 RTA - OXVA As an improved mini version of the original Arbiter, the Arbiter 2 features a top-to-bottom fanned airflow on its post-less build deck, which improves the flavor further while eliminating leakage. Post-less deck will give you more freedom and more space to build both single and dual coils.100% Leakproof due to the top-to-bottom airflow design. Whats more, evolved from honeycomb airflow, Fan-shaped airflow match with the higher temperature in the center of the coil. Its more