The aluminum 7H High Flow Automatic Diesel Nozzle is designed for leaded fuels. the low cost, long life and durability of the 7H high flow diesel nozzle can help increase your productivity, sales and profits. Three-position hold-open device allows for easy setting of flow rate, designed to shut-off automatically when the spout is tipped up. This high volume fuel transfer nozzle is capable of delivering fuel at rates up to 34 gallons per minute.