This is a compatible replacement for the LIXIL (Lixil) water purifier cartridge "JF-20". It is a replacement cartridge for LIXIL's all-in-one water purifier faucets and is compatible with JF-20, JF-21, JF-22, etc. The replacement period is approximately 2 months when using 13L per day. Compatible products may have a different number of substances removed compared to genuine products. The JF-20 is considered an economy type that removes 5+1 substances. The JF-20 water purifier cartridge has a replacement period of approximately 6 months and is a high-performance filter that supports PFOS/PFOA. - Model Name: JF-20 - Type: Water purifier cartridge - Replacement Period: Approximately 6 months - PFOS/PFOA: Supported - Replacement Method: With instructions Thank you for viewing.