Question: what is the difference between moen cartridge 1225 and 1225b?
Answer: The 1225b is just bulk packaging of the single 1225. If you buy Moen products, keep the receipt, they have lifetime warranty for purchaser. ... The difference between the 1225 and the 1225B is with the packaging. The cartridges are exactly the same, the package in which the part is displayed is different.