Reverse Osmosis Replacement Water Filters: Experience what water should taste like with the Express Water reverse osmosis water filtration system removing up to 99.99% of contaminants. Reverse Osmosis Filter Replacement Set: Each Express Water replacement filter is specially designed to work together and compliment each other. Get the cleanest water and the best value in your filtration Alkaline Filter: The Alkaline Mineralization filter uses a five-stage mineralization process to create the freshest, best-tasting drinking water the same way as the healthiest natural water sources on Earth. Reverse Osmosis Membrane: The RO Membrane is specially designed with density graded layers of filtration to filter the hardest to remove contaminants like dissolved solids, microplastics, fluoride, Heavy Metals, and more. Multi-Stage Water Filtration: Activated Carbon Block and Granular Activated Carbon block water filters protect your water system from chlorine damage and remove volatile organic chemicals. Sediment water filters keep damaging sediments out of your drinking water and protect your other filters from coarse contaminants including rust, sand, dirt and silt. Experience the purest, best-tasting water with the Express Water Reverse Osmosis System Replacement Filter Set. This set includes 9 filters, designed to work together to remove up to 99.99% of contaminants, including dissolved solids, microplastics, fluoride, and heavy metals. The Alkaline Mineralization filter uses a five-stage mineralization process to add minerals, pH, and antioxidants, providing you with the freshest and healthiest water. The Reverse Osmosis Membrane and Multi-Stage Water Filtration protect your water system from chlorine damage and keep damaging sediments out of your drinking water. This replacement filter set is designed for the RCS5T Reverse Osmosis water filter system and comes with a booster pump (iSpring PMP53) with 3/8 inch fitting, voltage of 36 volts, inlet pressure of 15 - 50 psi, and waterproof level of IPX4. The filters have dimensions of 9.75 x 2.5 inches and the booster pump has dimensions of 10 x 2.5 inches. The filters are made of Carbon material and the booster pump is made of compatible materials for water filtration.