AAF Flanders NaturalAire 20 in. W x 20 in. H x 1 in. D Polyester Synthetic 8 MERV Pleated Air Filter (Pack of 12) tier-discount-3 Maximum Feet of Head: 24

Maximum Feet of Head: 24 ft

Inner Diameter: 3/4 in

the environmentally safe

Connection Size: 0 in

AAF Flanders NaturalAire 20 in. W x 20 in. H x 1 in. D Polyester Synthetic 8 MERV Pleated Air Filter (Pack of 12) tier-discount-3 Maximum Feet of Head: 24The Naturalaire standard MERV 8. The Naturalaire standard has an ASHRAE 52. 2 rating of MERV 8. This filter is convenient to use and easy to replace. Ordinary furnace filters are designed to protect heating and cooling equipment from the insulating properties of relatively large airborne particles. The Naturalaire standard goes far beyond that, removing even those microscopic particles that can stain walls and furnishings or worse aggravate seasonal