Aluminum portable product features: Corrosion-resistant and rust-free Six to 40 pound sizes are equipped with an Overfill Prevention Device Non-sparking for greater safety Like all of our products, our portable propane cylinders meet industry regulations for quality. Plus, all of our cylinders are manufactured in facilities that have won awards for proactive safety practices and regulations. These cylinders are also manufactured to Department of Transportation (DOT) or Transport Canada (TC) specifications in facilities that have a Quality Management System certified to ISO 9001 requirements.
