About This 【NEEDS】If you are experiencing problems such as water leakage from a faucet, water temperature always being too cold or too hot simply replacing these cold& hot valves can solve your problems and bring you a comfortable experience. 【COMPATIBLE WITH】 Compatible with ceramic cold/ hot cartridges. from a variety of faucet models (E.G. brass 365 and 850c). 【PREMIUM QUALITY】Long life-span matters, that is why our bathroom valve cartridge is composed of high-quality brass material and ceramic, which can effectively withstand high and low temperature invasion without corrosion or deformation, and it has good sealing performance greatly increase the service life. 【INCLUDING】A brass 1-001 ceramic cartridge, a brass 1-002 ceramic cartridge, a cross screwdriver, an allen wrench, and 4 screws. You can easily complete the installation by yourself. 【12-MONTH WARRANTY】 If for any reason at all, you are not fully satisfied with the ceramic cold& hot cartridge, simply contact us through amazon message at any time. We will provide comprehensive quality assurance for our product.