brand new except for open box for pictures. Replacement filter pack for Aquasana 3-stage under sink water filtration systems: AQ-5300.55, AQ-5300.56, AQ-5300.62 Use only genuine Aquasana replacements with your Aquasana system - untested replacements are not certified for performance capacity or contaminant removal Replacements are an easy twist - no need to disconnect hoses or water lines. Simply twist off the filter housing, replace the filter, and twist back on. - no plumber necessary Reduces up to 99% of 78 contaminants including lead, PFOA/PFOS, chlorine, pesticides, microplastics, and more Genuine, certified Aquasana replacements are WQA tested and certified to NSF/ANSI Standards 42, 53 (includes P473), and 401
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