| Property | Details |
|---|---|
| Category | Equipment |
| Source | Crafting |
| Description | Expanded air supply for longer dives. |
The High Capacity Air Tank is a piece of equipment that can be equipped to increase the supply of oxygen by 75 seconds in addition to the character's base 45-second supply, for a total of 120 seconds of oxygen.
Recipe
The blueprint for the High Capacity Air Tank is unlocked by finding its Recipe Data Card. Once unlocked, it can be crafted using the following ingredients:
| Ingredient | Quantity |
|---|---|
| Standard Air Tank | 1 |
| Plasteel Ingot | 1 |
Crafted at: Fabricator
Usage
Similarly to the Standard Air Tank, the High Capacity Air Tank can be equipped in the Air Tank slot for +75 Oxygen capacity (120 total).
It will quickly refill when above water, as well as inside a powered Vehicle or Seabase.
Recipe Data Card Locations
The Recipe Data Card can be found at the following locations:
| Coords & Depth | Description | Image |
|---|---|---|
| -351269, 457444 @ 90m | Inside the Spires Wreck 1 | ![]() |
| -208016, 427366 @ 140m | Inside the Research Outpost | ![]() |
| -122968, 420313 @ 330m | In the Stairway to Heaven wreck | ![]() |
| -120742, 422778 @ 335m | In the Stairway to Heaven wreck | ![]() |



