The Flame King 1/4 LB refillable propane cylinders are perfect for small propane lamps and lanterns, welding torches, and cooking torches. These propane bottles are refillable & transportable. Our unique & patented valve design is not available from any other manufacturer. Spend your money wisely & start refilling small cylinders whenever you need them! Tossing a single-use disposable tank is just a silly waste of resources & can be a potentially huge problem in the waste stream! Join the eco-revolution! Please note: these cylinders fill fastest & safest with our commercial Flame King refill adapter - sold separately. - UL1769 listed.