I have a Coleman duel fuel camping stove. It can run on gasoline. It has a small reservoir. The screw on cap doubles as a hand pump to pressurize it. Fairly com

I have a Coleman duel fuel camping stove. It can run on gasoline. It has a small reservoir. The screw on cap doubles as a hand pump to pressurize it. Fairly common style for backpacking where size and weight are critical and you don’t want to carry a separate gas cylinder (as a personal preference).