Waterskin(4)

Waterskin(4) is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "A full waterskin with four portions of water."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 18 gp, and item ID 1823.

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Waterskin(4) shows an active flip setup with a margin of +12 gp and 10,689 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 24.0k gp — high margin with healthy liquidity.