Nikken Aqua Pour 1 Filter Cartridge 1 Micro Sponge Pre-Filter 1 Ceramic Pre-Filter 1 Mineral Stones, 1361 1362 1364 1386, Replacement for Gravity Water FIlter Purifier System 1360, PiMag Genuine USA Nikken PiMag Aqua Pour Gravity & Gravity Deluxe replacement pack Includes filter cartridge, pre-filter sponge, pre-filter ceramic and Pi minerals stones To receive optimum performance with your Nikken products, replace filters and other components. Replacement schedule, black filter every 3-6 months depending on water quality, pre-filter sponge - 5 years or when stained, pre-filter ceramic 2 years or when stained and water filters through. For USA purchased Aqua Pour units only. Does not fit the Pimag Waterfall Unit.