Lightweight High Capacity Tank

The Lightweight 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, after the player has retrieved its blueprint from a Data Box. It requires a Plasteel Ingot, a material which is rare earlier on, and even the single ingot represents half the Plasteel requirement for a Prawn Suit and a third of a Cyclops.

Just like the High Capacity O₂ Tank, it boosts the player's oxygen supply by 90 units. However, it has a lower weight than the High Capacity O₂ Tank, allowing for a smaller penalty to movement speed while retaining the bonus of an increased Oxygen supply. Equipped, it will allow a 7.5 meters per second swim speed, compared to 7 mps for the Ultra High Capacity Tank.

The player must equip the Lightweight High Capacity Tank in the tank slot of the Paperdoll UI in order to benefit from it. While not equipped, it takes up six slots (2x3) in the inventory.