Recommended a whole home filter. Customer declined… : r/Plumbing
Membrane Solution 20" x 4.5" String Wound Whole House Water Filter
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Filtrete 20-in W x 20-in L x 1-in MERV 13 1900 MPR Premium Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
Membrane Solution 20" x 4.5" String Wound Whole House Water Filter