30 lb. Steel Propane / LP Cylinder with OPD . A refillable propane gives a in capacity over other cylinders while still being easily portable. A great choice for camping, heating, and cooking. Ships empty. TESTED AND CERTIFIED: DOT and TC Approved HIGH QUALITY CONSTRUCTION: shot blasted and powder coated exterior with easy carry collar handles INSTALLED: OPD refillable installed DIMENSIONS: 12.3″ diameter x 23.4″ high 30 LB PROPANE CONTENTS: Ships empty