Compatible Model: Specifically designed for the S2 Reverse Osmosis System. Stokk replacement filters are crafted to meet the exacting standards of your S2 water filtration system, allowing your water filtration system to maintain its peak performance Enhanced Filtration Performance: Our TC replacement filters combine an advanced pre-filter and post-carbon filtration system to give you superior water purification. It can effectively remove various impurities such as sand, particulates, suspended substances, odors and chlorine residues in the water, ensuring that you enjoy healthy and pure water Premium Materials: The pre-filter is crafted from premium-grade Polypropylene, which can effectively captures and blocks large particulate impurities in water, such as sediment, ensuring optimal protection for further filters and RO membranes. The coconut-shell activated carbon filter is made from high-quality activated carbon particles, which can further remove residual odors, chlorine, and other potential contaminants, improve the taste and purity of the water Long-lasting Durability: With a prolonged lifespan, our filters offer long-lasting performance, it is recommended to replace the filter every 6-12 months for optimal performance (depending on your filtered water consumption) Effortless Installation and Replacement: Our TC replacement filter is designed for hassle-free installation. With just a simple twist, the filter elements can be effortlessly replaced. Spend less time on maintenance and more time enjoying pure, refreshing water.