In less than 3 years, all three cartidges, for hot and cold and the faucet itself, needed to be replaced. This is one of the worst sets I have seen. I have seen plastic units perform better than this one. Fortunately it's the only Moen we own and soon to be replaced. Moen did send us replacement cartridges for hot and cold, I am awaiting the center unit cartridge, which I expect they will follow through and send.
Fort Myers, FL