Our Drop-In Cast Iron Bathtubs features all the benefits of our free standing models but in a convenient built-in configuration.Cheviot Products cast iron bathtubs are handmade in Europe with the finest materials. Fired with a thick coating of AA grade titanium-based enamel for unparalleled hardness and non-porosity, the extremely durable surface is easy to clean and resistant to stains, bacteria and other microbes. Cast iron also keeps your bath warm for the longest possible time.