Culligan Level 1 Water Filter Cartridge 2-Pack is designed to improve your water quality by effectively removing bad taste, odors, and sediments such as dirt, sand, silt, rust, and scale particles. This basic filtration cartridge features a 5-micron nominal filtration level, ensuring cleaner and fresher water for your home. Made with resin-impregnated cellulose, the filter cartridges enhanced strength and durability. Each cartridge has a filter life of up to 3 months or 250 gallons, making it a reliable choice for maintaining your water system. The D-10 filter is compatible with Culligan models US-600, US-550, and SY-2000, providing versatile use across multiple systems. Model Number: D-10