Efficient Filtration: iSpring F10DS replacement pack includes 10 filters: 4 sediment, 2 composite, 2 carbon block, 2 post-carbon. These reduce dust, odors, and enhance water taste. Easy DIY Installation: iSpring filter cartridges offer quick DIY setup in minutes. Change every 6-12 months based on pollution and use for optimal results. Durable, Leak-Proof: Premium filters use high-quality materials with large surface areas for extensive filtration, minimizing clogs and leaks. Individual Packaging: Each cartridge is separately packed for freshness. Unwrap before installation and flush for 3-5 mins before use. Customer-Centric Support: Enjoy a 30-day money-back guarantee, a hassle-free 30-day warranty for replacement filters, and lifetime responsive customer service.