Barrel

The Barrel is a members-only Old School RuneScape item — “An empty barrel.”. Its Grand Exchange buy limit is 15 per 4 hours. Right now it buys at 900 gp and sells at 1,150 gp — a net margin of 227 gp (25.2% ROI) after the 2% Grand Exchange tax of 23 gp. High alchemy yields 1 gp.

To flip it, place a buy offer near 900 gp and a sell offer near 1,150 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.