Ultra High Capacity Tank (Subnautica)
The Ultra High Capacity Tank is a piece of equipment which is an upgrade to the High Capacity O₂ Tank. It can be crafted at the Modification Station after retrieving its blueprint from a Data Box. 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.
Note that when an O₂ tank of any kind is built, it defaults to being empty: it must be equipped in an atmosphere in order to fill it. This is important if the player intends to carry multiple tanks for deep diving without a vehicle.
The Ultra High tank has twice the oxygen of the High Capacity, but a 50% greater swimming penalty, and is the only tank with speed penalty when in inventory as well as when equipped in a Paperdoll slot. The inventory penalty only affects Swimming Speed, including the Seaglide, but not movement on land, and increases for each additional tank in the inventory.
Stats
| Attribute | Value |
|---|---|
| Description | Additional air capacity. |
| Oxygen Bonus | +180 O₂ |
| Total Oxygen | 225 O₂ |
| Build Time | 3 seconds |
| Size | 9 (3×3) |
| Speed Penalty (Equipped) | -0.6 m/s underwater; -0.795 m/s surface |
| Speed Penalty (Inventory) | -0.95 m/s per tank |
Acquisition
The blueprint for the Ultra High Capacity Tank can be found in Data Boxes at the following locations:
- Dunes Wreck
- Lifepod 19
- Degasi Seabase - Jellyshroom Cave
Recipe
The Ultra High Capacity Tank is crafted at the Modification Station.
High Capacity O₂ Tank
Lithium × 4
↓
Modification Station
↓
Ultra High Capacity Tank
Gallery
Ultra High Capacity Tank on the seabed
An Ultra High Capacity Tank in construction
The Ultra High Capacity Tank's old model
Trivia
- The Alterra logo is sported on the back of the Ultra High Capacity Tank.
