Water Purifier Cartridge NKT-500 Compatible replacement water filter for Altech, Janix, Nichiden, Nanbu Kasei, OSG, Proton, Riverstone products, etc. Manufactured by Nissho Medical Instruments Brand new, unused. 【Compatibility】 The NKT-500 is compatible with specific water purifiers and is easy to replace. Using it will maximize the performance of your water purifier. 【Safety】 This is a high-quality product made in Japan, ensuring safety. It is an item that can be used with peace of mind in your home. - Model Number: NKT-500 - Brand Name: NISSHO - Material: Contains activated carbon - Size: Approximately 60mm in diameter, approximately 120mm in height Thank you for viewing.