4-Pack Replacement Culligan RVF-10 Granular Activated Carbon Filter - Universal 10-inch Cartridge for Culligan RVF-10 Exterior Water Filter - Denali Pure Brand Replacement Culligan RVF-10 Polypropylene Sediment Water Filter, Quantity: 4 Replacement Culligan RVF-10 Polypropylene Sediment Water Filter Universal 10 inch Granular Activated Carbon filter. Improves taste and clarity while retaining beneficial nutrients by reducing chlorine, fine sediment, odor, silt, rust. Removes undesirable and possibly harmful waterborne contaminants, particles, chemicals and microorganism. Reduce water bottle waste and save money while also helping the environment by using water filters. For the highest quality water and best contaminant reduction replace the filter every 6 months. On Sale for a Limited Time!