About this product: 【Antibacterial & Highly Durable Ceramic Structure】The cartridge uses 97% natural non-woven fabric, high-performance activated carbon, and an antibacterial ceramic filter. The antibacterial properties of the ceramic effectively inhibit the growth of bacteria inside the cartridge, providing clean and safe purified water at any time. 【Compatible Models & Compatibility】This water purifier cartridge is a replacement cartridge for all-in-one water purifier faucets compatible with JF-22-T, and also compatible with e-modern type, FS type, FN type, wall-mounted type, etc. Furthermore, it is also compatible with JF-20 and JF-21, so you can use it with peace of mind. 【Removes 15+2 Types of Impurities】Adsorbs a total of 17 harmful substances, including free residual chlorine, chlorine odor, pesticides, trihalomethanes, and dissolved lead. Activated carbon fiber removes organic matter and odors, making it ideal for daily drinking and cooking. Furthermore, it has been tested in Japan according to JIS standards, and it has been confirmed to remove over 80% of harmful substances. It also handles impurities such as cloudiness and red rust, making your daily water supply safer and more secure. 【Replacement目安 (Guide)】One cartridge can filter up to 1200 liters (about 4 months' worth) of water. Approximately 2 months for families of 5 or more (20L per day), approximately 3 months for families of 3-4 people (13L per day), and approximately 4 months for families of 1-2 people (10L per day). It is economical despite its high performance, and is also a budget-friendly item. (We recommend replacing the cartridge according to your usage.)