W4001 Replacement Filter Cartridge (S) - 1st Stage for WA99 RO System

Frizzlife W4001 Replacement Filter Cartridge for WA99 Countertop RO Water Filter System 1st stage replacement filter for Frizzlife countertop reverse osmosis water filter system High-grade sediment filter, blocks fine debris and reduces particles such as sand, silt, and rust from water. QUICK CHANGE & TOOL FREE: The twist-in filter system makes the filter replacement a breeze and no tools required. The tool-free replacement save your time and energy. Your hassle-free life is our concern. Please change the sediment filter every 1500L or 6 months (Please kindly note that the service life depends on source water quality and water usage).