The Ultra High Capacity Tank is a piece of equipment and an upgrade to the High Capacity O₂ Tank. It can be crafted at the Modification Station. It boosts the player's Oxygen supply by 180 units, increasing it to a total of 225 O2. The player must equip the Ultra High Capacity Tank in the tank slot of the Paperdoll UI in order to benefit from it. While not equipped, it takes up nine slots (3×3) in the inventory. Equipping an Ultra High Capacity Tank incurs a movement penalty of 0.60 m/s underwat
Ultra High Capacity Tank Fragments Location
Ultra High Capacity Tank, Subnautica Wiki
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How to find ultra High Capacity O2 Tank in Subnautica Below Zero
How to find ultra High Capacity O2 Tank in Subnautica Below Zero
Ultra High Capacity Tank (Subnautica), Subnautica Wiki
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High Capacity O2 Tank Location Subnautica Below Zero