In March 2011, we had our bathroom remodeled, and our new Moen shower fixture takes the 1222B cartridge. I know this because it leaked and I replaced it twice in the first month. I thought the third try would work out, but after four months the cartridge has again begun leaking and the tub spout is again dripping. I am sort of disgusted with this product, and am tired of replacing this over and over. I am using Moen parts, not aftermarket. My questions are--have others run into this sort of performance problem, and is there a better replacement product available than the 1222B? Thanks!