Crystala Filter (CF3) is more than just a cheaper water filter replacement for your Frigidaire refrigerator and Pure Source 3 (WF3CB) model - it's an economical choice for superior water filtration at a quality price. WQA certified, tested for safety and performance, and backed by Crystala's Life Time Guarantee - replacing your current filter with a Crystala fridge water filter just makes sense. Inexpensive water filters don't need to be lower quality than those that cost a lot more. We started Crystala to provide economical premium filters for anyone desiring healthy, purified drinking water. Replacing your current filter with a Crystala premium water filter saves you money without compromising taste or purity. Crystala Filters undergo independent testing for the effective reduction of lead, iron, and other contaminants so you know your water will be Crystala Clean!