Whirlpool WHEERF Ultraease WHER25 and Wharos5 RO Water Filter Set. Fits Whirlpool WHER25 Reverse Osmosis System. Whirlpool UltraEase Reverse Osmosis Systems. Whirlpool WHER 25. You may experience a slower flow rate, but this is because they're certified to reduce forever chemicals.
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