The Mansfield 40CH is an all plastic chrome trip lever designed to fit several Mansfield tanks. This lever is compatible with Mansfield models, 11, 21, 26, 125, 159, 160, 165, 170, 171, 175, 180, 181, and 190. The arm of the lever that goes inside of the tank measures approximately 7 inches. This lever was offered in chrome, white, biscuit, and bone. It is now only offered in chrome, and white. The Mansfield 40 lever has changed a lot over the years. It is no longer made with the Mansfield name on the face of the handle, and there are also more holes in the arm of the lever. The reason for the extra holes is so that the lever can be used on several models. The handle will come complete with the nut to secure it to the toilet tank.