Bolt ring closure
Inner diameter = 18.25"
Outer height = 21.75"
UN Rated 1A1/X1.2/300 Under DOT 49 CFR
Meet UN Requirements for hazardous materials
Protect the integrity and safety of your product
Constructed of first-quality cold-rolled steel
X — for packing groups I, II and III
Y — for packing groups II and III
Z — for packing group III