【Replacement for WD-X12-Basic & WD-X8 RO System】This reverse osmosis system replacement filter can effectively reduce Chloride, Lead, Odor, Taste, Salt, Sand and more.【Professional Filtration】This reverse osmosis replacement water filter features an activated carbon layer to improve your water quality and taste, which elevates your cooking and drinking flavours.【Eco-wise Water Choice】Long-lasting 12-month filter lessens replacement hassles and helps the planet, making a sustained clean water supply.【Easy Replacement】 This water purifier is designed with an automatic water shut-off function when replacing it. No tools needed, just 3s quick replacement so you always have access to clean, refreshing water at home.