Aqualung
From WikiRaider
Remark: This article describes the item Aqualung in Tomb Raider Chronicles. For information about the very similar item found in The Angel of Darkness, see Aqua lung.
The Aqualung is an item found in the level The Submarine in Tomb Raider Chronicles.
When combined with the Suit Console alongside with the Suit Battery (created by combining Battery (-) and Battery (+)), Lara is able to use the Extreme Depth Suit when the Suit Console is placed to its receptacle.