Filtrete 16 In. x 25 In. x 4 In. 1000 MPR Allergen Defense Deep Pleat Furnace Filter, MERV 11 Pack options:Pack of 1 providing the durability needed for

providing the durability needed for use in hammer drill mode

000 RPM for fast cutting

This NSF-approved valve is constructed from durable PVC material

Heavy-duty square shank for wrench-assisted turning

Filtrete 16 In. x 25 In. x 4 In. 1000 MPR Allergen Defense Deep Pleat Furnace Filter, MERV 11 Pack options:Pack of 1 providing the durability needed forOpt 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%NADP01 4IN 4