Extended super antifire(3)

The Extended super antifire(3) is a members-only Old School RuneScape item — “3 doses of extended super anti-firebreath potion.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 14,991 gp and sells at 16,000 gp — a net margin of 689 gp (4.6% ROI) after the 2% Grand Exchange tax of 320 gp. High alchemy yields 456 gp.

To flip it, place a buy offer near 14,991 gp and a sell offer near 16,000 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.