For Pros and DIYers, Klean-Strip is the leading brand of solvents, thinners, removers, and cleaners that are dependable for reliable results. Klean-Strip 1-K Kerosene is refined to lower the sulfur content, improving air quality and extending wick life. This 1-K kerosene burns cleaner than 2-K kerosene. Klean-Strip Kerosene meets ASTM 1-K Specifications and is suitable for all kerosene-burning heaters, lamps and stoves. Read entire label prior to use or storage. Keep out of reach of children. Not for sale in South Coast AQMD.