2-Year Water Filtration Replacement Pack: This pack contains individually wrapped high-capacity filter replacement cartridges designed for 6-stage RO water filtration systems, providing 2 years of filtration. The pack includes 17 filters: 4x sediment filters, 4x granular activated carbon filters, 4x carbon block filters, 1x ro membrane, 2x post-carbon filters, and 2x ultraviolet light bulbs. Efficient Filtration: Our 100 GPD Reverse Osmosis membrane is able to remove up to 99% of over 1,000 contaminants from your water, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium and more. Experience clean, safe, and good-tasting water every time you turn on the faucetand, providing a wonderful drinking experience for your whole family. Universal Compatibility: iSpring water filter cartridge set fits standard housings that require 10” x 2.5” reverse osmosis water filter cartridges. Specifically designed to fit iSpring Reverse Osmosis systems with UV, ensuring seamless integration and reliable filtration. Long-Lasting UV Protection: The included UV lamp filter lasts up to 8,000 hours and operates at a flow rate of 1.0 GPM, effectively purifying your water. Perfect for under sink and RO water filter systems. Please Note: Updated and FT15 post-carbon filters are built with a secure push-fit quick connection, which allows faster filter replacement. If you have trouble installing the filters, please refer to the user manual or contact us.