About This Triple-Action KDF-55 + Activated Carbon + Calcite Filter: Powerful KDF media targets and reduces heavy metals & hydrogen sulfide, while coconut-shell carbon reduces chlorine, chloramine, chemicals, bad tastes & odors; calcite balances the water’s pH to deliver a crisp taste. Improves Taste & Odor Instantly: Premium carbon adsorption gets rid of bad taste, sulfur smell & VOCs, delivering fresh, great-tasting drinking water for coffee, tea, ice & cooking. High Capacity for Contaminant Removal: Designed for maximum chemical absorption, the cartridge removes contaminants commonly found in municipal water. Enjoy peace of mind with every sip knowing your water is clean and safe. Multiple Applications: Safe for home, office, & RV use; the EXPRT RF-1030 KDF + activated carbon + calcite replacement filter protects your family with clean, mineral-balanced, pH-optimized water every pour. Universal 2.5" x 10" Standard Fit: Fits most countertop water filter housings with a standard 2.5" x 10" size. It’s easy to install, compatible with APEX systems and others, making it a convenient upgrade to your water setup. Overview Material : KDF, Granular Activated Carbon, Calcite Product Dimensions : 2.5"D x 2.5"W x 10"H Item Weight : 0.71 Kilograms Product Benefits : Reduces Chlorine, Chemicals, Heavy Metals, Bad Taste & Odor and Improves Taste Brand : Exprt