Burial Vaults are used to protect the casket from the elements and stresses that are incurred through time. Because many cemeteries utilize heavy equipment in the maintenance of their grounds, they may require an outer burial container.

Every Clark vault is guaranteed to protect the casket from water and other elements through the use of an air seal principle. This can be easily demonstrated by turning a glass upside down and then submerging the glass into water. The air trapped inside the glass prevents the water from rising more than a fraction of an inch. The same is true of a non-porous Clark metal vault. The air trapped inside the dome prevents outside water from reaching the casket.

How a Clark Grave Vault Protects.  Air pressure inside an inverted glass will not allow the water level to rise more than a fraction of an inch. Perhaps you've seen this affect in your kitchen sink. A Clark Grave Vault protects its contents using the same principle. Its dome-shaped design allows air pressure to build, keeping moisture out. All Clark Vaults offer the ultimate in protection because: The best warranty in the industry. Submersion tested for air and water leaks. Unique design forms a natural air pressure seal. Manufactured from premium non-porous metal. A full-line of vaults to suit any burial or finacial need. The leader in the industry since 1898.