The Whirlpool WRS321SDHZ01 Water Filter is a 3-pack of Aqua Blue refrigerator filters designed for efficient water purification. With an NSF certified filtration method, these filters are compatible with various models such as W10295²370A, 46-9081, EDR1²RXD1, and 9081. Ideal for keeping your water clean and fresh, this product ensures high-quality filtration for a cost-effective solution to your kitchen needs.