BuTank works with all butane stoves and culinary torches with notched collar attachments. 8 ounces / 227 grams, high quality Butane fuel purity, clean and smooth burning flame with consistent BTU output, countersink release vent releases abnormal pressure, triple seamed explosion proof rim construction for safety, UL listed; Ideal for: Restaurants, catering, cooking outdoors, tableside preparations, parties, weddings, tailgating.