Flame King 40 Pound Steel Propane Tank Cylinder with Overflow Protection Device Valve Safety first - Flame King tanks are Pre-purged vacuum ready for filling with LP gas - they are x-ray and hydrostatic tested plus Department of Transportation (DOT) and Transport Canada (tc) certifiedHigh quality - each tank is constructed from high grade Welded Steel and powder coated for long lasting durability.Premium valve - Premium OPD (overfilling prevention device) valve assembly which is required by law in most states, if your tank doesn't have this, most places won't fill it!Leading the industry - Flame King, a leader in propane storage solutions, prides itself on making the highest quality, premium, refillable propane tanks on the market. From 1lb up to 100lb tanks, we've got you coveredSuit your needs - With a standard-size connection valve, This large 40 lb tank will connect as easily as smaller tanks, and work with RVs or trailers, propane tank attachable heaters, and other accessories.NOTE: The propane tank is empty and ready to be filled with gas ABOUT FLAME KING Flame King is dedicated to providing world class products that are second to none. We are always striving to achieve the highest quality, service and value for our customers throughout the world, with a broad line of advanced and innovative products. Our customer-focused approach has led the way for Flame King to be seen as the fastest growing company within the industry, recognized as a market leader around the world. Flame King's steel portable propane cylinders come in various sizes ranging from 1 lb. to 420 lb. for recreational, commercial, industrial and home applications. Like all of our products, each propane tank and cylinder meet or exceeds industry regulations for quality and are manufactured in facilities that have won awards for proactive safety practices and regulations. Quality and Service Flame King specializes in making propane tanks and cylinders used daily across the globe. You’ll find the quality of our service equals that of the propane tanks we deliver. Like all of our products, each propane tank and cylinder meet or exceeds industry regulations for quality and is manufactured in facilities that have won awards for proactive safety practices and regulations. Quality and Service Flame King specializes in making propane tanks and cylinders used daily across the globe. You’ll find the quality of our service equals that of the propane tanks we deliver. Like all of our products, each propane tank and cylinder meet or exceeds industry regulations for quality and is manufactured in facilities that have won awards for proactive safety practices and regulations. Certifications Made of steel, Flame King offers a complete line of portable propane cylinders. Flame King’s steel portable propane cylinders come in various sizes ranging from 1 lb. to 420 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. Flame King's ASME certified tanks and cylinders are manufactured to ASME specifications in facilities that have a Quality Management System certified to ISO 9002 requirements. Certifications Made of steel, Flame King offers a complete line of portable propane cylinders. Flame King’s steel portable propane cylinders come in various sizes ranging from 1 lb. to 420 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. Flame King's ASME certified tanks and cylinders are manufactured to ASME specifications in facilities that have a Quality Management System certified to ISO 9002 requirements.