This premium quality butane is purified through an exclusive 6-stage filtration process. Use in all butane lighters. Triple refined with near zero impurities. Won't cause clogged burner valves or misfires. Designed for use with the Lotus & Vertigo lighters, but recommended for all refillable butane lighters. Highly refined fuel reduces contaminants that cause clogged burner valves, misfires and malfunctions. Developed to safeguard your lighter against costly repairs. A perfect addition to a new lighter purchase. 3.04 oz/90ml premium butane fuel canister. Made in England. (shipping weight 1 lb)