The Flame King 5 LB Propane Tank is a pre-purged vacuum ready to fill with propane, avoiding the cost and headache of purging your new tank. Built from high-grade welded steel and powder coated for rust prevention. For your safety, this tank comes with an OPD valve to prevent overfilling. It also has a built-in gauge, so you don��t have to worry about running out of propane! The built-in gas meter gauge provides accurate gas level readings. X-ray and hydrostatic tested and DOT and Transport Canada certified so you can be sure to transport safely both in the US and CA. Its portable size makes it a perfect buddy for camping, ice fishing, beach get-togethers, and other outdoor activities. Use this tank along with Flame King��s Propane backpack for easier transport. Check item numbers YSNBKPK-AF and YSNBKPK. NEVER RUN OUT OF PROPANE: Our built-in gas meter gauge provides accurate gas level readings EMPTY TANK: Pre-purged vacuum ready for filling with propane; built from high-grade welded steel and powder coated for rust prevention OVERFILL PREVENTION DEVICE: Comes with an OPD valve to prevent overfilling SAFETY: X-ray and hydrostatic tested and DOT and Transport Canada certified so you can be sure to transport safely both in the US and CA PORTABLE with an easy-to-held collar makes it a perfect buddy for camping, ice fishing, and other outdoor activities. Use this tank along with Flame King��s Propane backpack for easier transport. Check item numbers YSNBKPK-AF and YSNBKPK.