Double Boiler, 11 qt., 18-8 stainless, complete with 11-1/2 qt, pot with welded loop handles, 11 qt, inset with flat bottom and flat solid cover with strap handle, inset outside diameter 11-7/8" dia., x 8-3/4" deep, insert & pot height 11", NSF, USA - The Vollrath company has produced quality restaurant supplies for over a century.