The TEEHAY Refrigerator Water Filter Model TH-04 is a sealed 2-pack replacement filter specifically designed for the wf3cb model. Originating from China, this refrigerator filter by teehay is compatible with wf3cb models, providing clean and fresh water for your kitchen needs. The pack includes one filter, ensuring you have a spare on hand for when you need it. With this product, you can trust that your water is being purified effectively and efficiently.