AquaTru filters deliver purified water right from the countertop. This combo pack keeps water systems running smoothly for a year, filtering out sediment, chlorine, and other contaminants. The pre/carbon filters condition water before reverse osmosis, while the VOC carbon filter enhances taste. Certified to NSF standards, these filters should be replaced every 6-12 months for optimal performance. Enjoy cleaner, better-tasting water with this convenient filter replacement set.