Whether you need to heat, power or grill, Worthington Cylinders specializes in making propane tanks and cylinders used daily across the globe. You�ll find the quality of our customer service equals that of the propane tanks we deliver. Like all of our products, each propane tank and cylinder meets or exceeds industry regulations for quality and is manufactured in facilities that have won awards for proactive safety practices and regulations. Made of either aluminum or steel, Worthington Cylinders offers a complete line of portable propane cylinders. Worthington"s steel portable propane cylinders come in eight sizes ranging from 4.25 lb. to 100 lb. for recreational, commercial, industrial and home applications. These cylinders are manufactured to Department of Transportation (DOT) or Transport Canada (TC) specifications in facilities that have a Quality Management System certified to ISO 9002 requirements.