SloanValve A-1045-A Royal Closet Dual Filtered Bypass Repair Kit

I opened the top of the leaking urinal to find this part was broken. I ordered the part and received it rapidly. I returned to the urinal, opened it again placed this part in place on the valve where the other had been, tightened the top on it again. When I turned the water on, another part leaked a little at the handle, so I tightened it just a tweak and the urinal is back in service with no more leaking.Mighty good design, the parts are a little flimsy, but they work. The original part lasted about 5 years before it broke. The life of this one began a few months ago. If it lasts 5 years, it will be doing ok.Note that the part actually broke into two pieces with the upper separated from the lower. The material at the break had fatigued - plastic and super thin plastic at that. The action of the lever against the part flexes the material at each flush until it fatigues. I am certain that a suitable thickness would avoid the problem. In addition the material on the top of the unit was beginning to be damaged by the chemicals in the water - they were breaking down after 5 years, so the part was due to be replaced anyway. It is a wonder that humans drink the water that is so caustic to other materials such as plastics and metal.