Filter By: --Brand-- Aqualine Aries Filter Works Filbur FilterCor Filtrex Harmsco Intelifil IPW Industries Inc. KX Technologies Pentek Pure PureT Unicel Valuetrex Watts --Primary Media-- Activated Alumina Calcite Carbon Block Catalytic Carbon Empty Refillable KDF/GAC Loose (GAC) Carbon Mixed Bed DI PolyPhosphate Sediment Filter Softening Resin Strong Anion Resin --Primary Function-- Chlorine Removal Cyst Filtration Empty Refillable Fluoride Removal Heavy Metal Reduction Iron & Hydrogen Sulfide Lead Reduction Nitrate Removal pH Neutralizing Scale/Corrosion Inhibitor Sediment Filter Softening Hard Water TDS Reduction VOC Reduction

Big Blue 10" x 4.5" replacement water filter cartridges are typically used for whole house water purification systems and commercial reverse osmosis systems.