Antifire potion(3)

The Antifire potion(3) is a members-only Old School RuneScape item — “3 doses of anti-firebreath potion.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 758 gp and sells at 783 gp — a net margin of 10 gp (1.3% ROI) after the 2% Grand Exchange tax of 15 gp. High alchemy yields 158 gp.

To flip it, place a buy offer near 758 gp and a sell offer near 783 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.