Extended super antifire(3)

Extended Super Antifire(3) is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "3 doses of extended super anti-firebreath potion."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 456 gp, and item ID 22212.

View on OSRS Wiki

Extended Super Antifire(3) shows an active flip setup with a margin of +667 gp and 3,416 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 1.33m gp — high margin with healthy liquidity.