The VEVOR 3-stage whole house water filter system uses a sediment filter plus GAC (Granular Activated Carbon), and CTO (Compressed Activated Carbon) filters to help reduce chlorine, odors, VOCs, and other common contaminants throughout your home. Designed around universal 4.5" x 20" cartridges, it’s built for straightforward filter changes and ongoing maintenance. A pressure gauge helps you monitor performance so you know when it’s time to replace cartridges. With high-flow plumbing connections, it’s intended to support whole-home demand while improving taste and overall water quality. Filtering up to 100,000 gallons of water, these filters last 6-12 months for reduced maintenance.