The Mansfield genuine 160 white porcelain tank lid is designed for the Mansfield tank models, 160, 161, 170, 171, 172, 173, 174, 180, 181, 190, 3120, 3121, 3122, 3125, 3173, 3174, 3165, and 166. This tank lid is also offered in biscuit, and bone. Bone is often reffered to as an almond color, and biscuit is an extremely light tan. May also have the Number 160B on the underside of the lid.