This is a set of 3 replacement water filter cartridges for INAX, model JF-K12-C. It's a high-grade model that removes 15+2 substances and highly removes chlorine, suitable for kitchen use. Compatible models are JF-AJ, JF-AK, and RJF-971. [Brand] INAX / LIXIL [Model Number] JF-K12-C [Type] High Grade Type [Removed Substances] 15+2 substances / High Chlorine Removal [Quantity] 3 cartridges [Application] For Kitchen [Compatible Models] JF-AJ, JF-AK, RJF-971 Thank you.