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Underwater Lab Ration BoxThe Underwater Lab Ration Box can hold 13 different items.
Chance is for one container opened or one body looted: the chance the item is inside. Amount is how many when it is there.
| Item | Chance | Amount |
|---|---|---|
Anti-Radiation Pills
| 34.9% | 1 to 3 |
Water Jug
| 34.9% | 1 to 3 |
Apple
| 18.7% | 1 to 3 |
Bread Loaf
| 18.7% | 1 to 3 |
Can of Beans
| 18.7% | 1 to 3 |
Can of Tuna
| 18.7% | 1 to 3 |
Chocolate Bar
| 18.7% | 1 to 3 |
Corn
| 18.7% | 1 to 3 |
Granola Bar
| 18.7% | 1 to 3 |
Honeycomb
| 18.7% | 1 to 3 |
Pickles
| 18.7% | 1 to 6 |
Potato
| 18.7% | 1 to 3 |
Small Water Bottle
| 18.7% | 1 to 3 |
| Where | Each one holds | Layouts with it |
|---|---|---|
| Abandoned Military Base buildings | about 0.5 to 1.5 | 3 of 25 |
| Underwater Lab rooms | about 0.5 to 1.5 | 5 of 52 |
Across procedural Rust server maps, Underwater Lab Ration Box is a world loot prefab featuring 6 inventory slots (150 breakable durability) that draws from 13 possible item entries across 2 monument and world spawner groups. Every drop row in the reference table above is compiled directly from the game's internal loot trees at build time to reflect vanilla survival rates.
In addition to per-item drop probabilities, stack size bounds, and spawn durability ranges, the Underwater Lab Ration Box sheet tracks expected container populations across every monument layout on the island. Solo players and clans can compare guaranteed Scrap and component returns per container open and plan monument routes around yellow, green, or red recyclers across the wipe.
Opening Underwater Lab Ration Box in Rust reveals 6 inventory slots drawn from 13 possible loot items across its weighted drop table, with per-open odds, stack bounds, and durability ranges listed above.
Underwater Lab Ration Box (150 HP) appears through world events, vehicle encounters, missions, or biome loot points rather than at static monument spawners, rolling its 13-item drop table whenever players trigger the encounter.
Underwater Lab Ration Box does not grant a fixed guaranteed Scrap stack on open, supplying Scrap either as a rolled item among its 13 possible drops or by recycling the components it contains.
Underwater Lab Ration Box carries 150 breakable hitpoints and must be smashed with melee weapons, tools, or projectiles before its 6 loot slots and any rolled Scrap spill onto the ground.
Because Underwater Lab Ration Box is tied to dynamic world events, destroyed vehicles, missions, or biome spawns rather than a static monument spawner, fresh containers appear whenever that event or world cycle triggers.
Each item percentage in the Underwater Lab Ration Box loot table shows the exact chance of receiving at least one stack of that item from a single open, calculated across all weighted sub-tables in the game files.
Firearms, tools, or armor pieces in the Underwater Lab Ration Box table that roll with partial condition show their exact durability percentage span next to their drop odds, whereas resources, Scrap, and components spawn intact.