fortress vault in white, urn vault for burial, adult sized, polymer storage of one cremation urn for burial of ashes silverlight urns the fortress urn vault in white is a sturdy container designed to hold a single cremation urn that is intended for burial. any type of urn can be placed in the vault (wood, ceramic, brass, etc.). many cemeteries require the use of an urn vault to protect the urn and its contents from the elements, as well as from possible damage from heavy cemetery equipment. this vault has a top load pressure of 2929 lbf. other small mementos can be included in this container if desired. the fortress urn vault in white is made from superior grade lightweight polyethylene and features tongue and groove construction for maximum strength and sealing capabilities. this urn vault also comes with a watertight sealant for added protection. the outside of the vault is finished in glossy white and the interior is lined with burgundy velour, adding a classic and elegant touch.