Filtrete 12 In. x 12 In. x 1 In. 1000/1085 MPR Allergen Defense Furnace Filter, MERV 11 Pack options:Pack of 1 1-piece steel construction for increased

1-piece steel construction for increased strength and durability

and complete instructions

flat to the surface holding

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Filtrete 12 In. x 12 In. x 1 In. 1000/1085 MPR Allergen Defense Furnace Filter, MERV 11 Pack options:Pack of 1 1-piece steel construction for increasedOpt for a Filtrete Allergen DefenseAir Filter to transform your central heating and cooling system into a whole home air filtration operation. This no nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog). %search_data%9810 4