- Compatibility and versatility: This replacement assembly fits a variety of filter systems, including those rated for 1500, 2500, and 4000 gallons per hour, and is compatible with saltwater chlorinators and standard chlor pumps. - Practical water flow control: The piston valve design enables quick opening and closing, providing precise control of the water flow while helping maintain the cleanliness of your pool. - System upgrade and maintenance: Replace aging components or upgrade to a more efficient setup, making it easier to switch hoses and pumps and improve overall system operation. - Use scenarios: - Replacing a worn valve in a 1500 GPH or 2500 GPH system to restore proper flow and chlorinator performance. - Upgrading to support saltwater chlorination while preserving familiar pump workflows. - Re-plumbing for a multi-pump configuration, enabling easy hose and pump switching during maintenance or upgrades.