3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 17.5x23.5x1 Aqua-Pure By addressing these common impurities

By addressing these common impurities

and pH -- the three parameters most commonly evaluated before selecting a water softener

Saves Money - improves performance and prevents costly repairs

Feed Rate - depends on water acidity

hard scale and sediment from your tap water

3M Filtrete 1000 Micro Allergen & Dust Defense Filter - 17.5x23.5x1 Aqua-Pure By addressing these common impuritiesThe Filtrete Micro Allergen air filter size 17. 5x23. 5x1 MPR 1000 filters dust, pollen, smoke and mold spores without draining your wallet. This MERV 11 filter uses a pleated fabric with electrostatically charged fibers that act like tiny magnets to capture even the smallest particles for up to 3 months. The Micro Allergen goes to work every time your heating and cooling system kicks on. It's like having an expensive whole house air purifier, only