There are two types of containers: Item Containers and Liquid Containers. As their names indicate, an Item Container can only hold Items (not liquids), and a Liquid Container can only hold Liquids (not items).
Some item containers can be carried in your backpack. Other item containers cannot. If you try to pick up a container that cannot be carried, you will see a message that says "you cannot take this item".
|Backpack of Holding||15.00||None|
|Christmas Present (Blue)||6.00||None.|
|Christmas Present (Green)||6.00||None.|
|Christmas Present (Red)||6.00||None.|
|Deepling Backpack||18.00||Deepling Guard, Deepling Tyrant.|
|Fur Bag||8.00||Barbarian Brutetamer, Barbaria.|
|Jewel Case||1.70||Zugurosh, Massacre|
|Jewelled Backpack||17.00||Crystal Spider, Dark Torturer, Enlightened of the Cult, The Bloodweb.|
|Lizard Weapon Rack||55.00||None.|
|Moon Backpack||18.00||Wisp, Leviathan.|
|Mushroom Backpack||18.00||Hideous Fungus, Humongous Fungus.|
|Old and Used Backpack||18.00||Rare spawning Orc.|
|Pile of Bones||100.00||None.|
|Pirate Backpack||18.00||Pirate Buccaneer, Pirate Corsair, Brutus Bloodbeard, Deadeye Devious, Lethal Lissy, Ron the Ripper.|
|Pirate Bag||8.00||Pirate Cutthroat, Pirate Marauder.|
|Small Bamboo Shelf||N/A||None.|
|Treasure Chest (Ornamented)||95.00||None.|
|Zaoan Chess Box||38.00||None.|
Fluid containers do not have an explicit capacity. They are either empty or they have a liquid in them.
Some liquid containers allow you to see the liquid that is inside them (Vial, Bucket, Trough, etc.), but some liquid containers do not change appearance when they have a liquid in them (Bottle, Brown Flask, Cup, etc).
|Bottle||2.50||Grynch Clan Goblin.|
|Bowl||3.80||Necropharus, Fernfang, Dharalion.|
|Brown Flask||3.00||Dark Monk, Gozzler, Monk, Fernfang.|
|Bucket of Bog Water||30.00||None.|
|Empty Potion Flask (Large)||1.80||None.|
|Empty Potion Flask (Medium)||1.60||None.|
|Empty Potion Flask (Small)||1.50||None.|
|Golden Mug||4.70||Dragon Lord, Frost Dragon, Serpent Spawn, Undead Dragon, Demodras, Morgaroth, Orshabaal, Zanakeph.|
|Rum Flask||2.80||Crazed Beggar, Pirate Buccaneer, Pirate Corsair, Pirate Cutthroat, Pirate Marauder.|