Power from Nature – Pre-filter Pad with Precious Shungite for Cleaner WaterEnhance the performance of your MAUNAWAI® gravity filter or your Kini jug with our Premium Shungite Pre-Filter Pad.Even before the main filtration process, a portion of lime, nitrate, and various contaminants are reliably bound.The unique fullerenes in the noble shungite act as natural catalysts in the water and promote...