The Culligan Whole-House Sediment Water Filter Housing makes sure your family has a clean, fresh water supply throughout your home. This filtration system works to reduce dirt, sand, and silt buildup in plumbing lines. Your kitchen, laundry room, bathroom, and outdoor water comes out clean and fresh to help keep your family healthy. Humans aren't the only ones who benefit from clean water. Machines also run more smoothly, and longer, when the water they take in is fresh and dirt free. Because this filter limits the amount of dirt and grime introduced into your appliances, your home's water-using devices are likely to last longer and perform at their best. The WH-S200-C with P5 cartridge is tested and certified by WQA against NSF/ANSI 372 for low lead compliance, CSA B483.1, and NSF/ANSI 61 for material safety only.