The iSpring US21B-CPB Under Sink Water Filter System offers advanced filtration with a 4-layer process featuring two high-performance filters. The FG15B-KS reduces PFAS, chlorine, and heavy metals, while the FC15B-PB cuts up to 99% of lead. With a high capacity of 80,000 gallons and an expanded filtration surface, it provides efficient contaminant removal and rapid water flow. Installation is effortless with 48-inch DIRECT CONNECT hoses, requiring no drilling or extension hoses. Made from premium materials, this system ensures a continuous supply of clean, refreshing water, enhancing your home's water quality with ease.