The Revelation 2 filters. The new Revelation 2 Undersink Water Ionizer also introduces the most sophisticated filtration system for any water ionizer, touting two internal filters with sixteen stages to clean, condition, and revitalize your water before it is even ionized! The REVELATION II alkaline water ionizer is of the highest quality. It separates water with 9 plates, giving you pH 11 in addition to its 2 built-in carbon filters.