ZLINE Built-In 72-in Bottom Freezer Refrigerators with Graphite Gray InteriorThe ZLINE GRBIT 304 series of built in bottom freezer refrigerator offers professional grade kitchen refrigeration with a sleek, custom flush installation. 72 inch width, this refrigerator provides ample storage space while maintaining a seamless built in look that complements any kitchens design. The striking graphite gray interior adds a modern, upscale contrast to stored foods and beverages. Designed for convenience and efficiency, these models