Ultra High Capacity Tank (Subnautica)

This article is about the Ultra High Capacity Tank in Subnautica. Click here for information on this subject in Below Zero.

This article is about the Ultra High Capacity Tank. If this is not what you are looking for, see Oxygen Tank (Disambiguation).

Ultra High Capacity Tank
Category	Equipment
Description	Additional air capacity.
Acquired From
Build Time	3 seconds
Size	9 (3×3)
Perks	Additional oxygen supply
Penalties	-0.6 m/s underwater, -0.795 m/s surface
Attribute	+180
Debug Spawn	highcapacitytank
Data Boxes
Location	Dunes Wreck Lifepod 19 Story Spoiler Degasi Seabase - Jellyshroom Cave

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.

Recipe

×4

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.