Optimus fuel bottles are suitable for transporting and pressurizing all kinds of liquid fuel. An interior epoxy coating ensures that mehtylated alcohol and contaminated fuels can be kept safely in the bottles. Thanks to a unique hardening process, these bottles are strong and durable, yet surprisingly light weight. The Optimus Fuel Bottle's standard threads are compatible with Nova and Nova+ stoves as well as most other pump stoves that burn liquid fuels.