DetailsReturn Grill Media Air Filter, 18" x 18" Provides High Efficiency, Long Life Alternative To 1" Filter. Patented Design, Unique To Industry, Captures Significant Amount Of Airborne Particles In Air That Circulates Through Filter. Mounts In Most Return Filter Grills. Pleated For Greater Media Capacity. Low Pressure Drop Provides Comfortable Air Flow. Maintains Equipment Efficiency Longer Than Standard Filters. Minimum Efficiency Reporting Value Merv-10. Efficiency Ranges Are Defined For Small Particles, E1 = 0.3 To 1.0 Microns; Medium Particles, E2 = 1.0 To 3.0 Microns; and Large Particles, Over 3.0 Microns. Fractional Efficiency: E1=31%, E2=61%, E3=86%.
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Weight 1.42 Pounds (Lb) Width 5 Inches (In) Height 18 Inches (In) Country of Origin MEX Length 18 Inches (In) Brand Honeywell Filter Rating (Microns) E1=31%, E2=61%, E3=86% MERV Rating 10 Application Return Grill Size 18" x 18" x 4" Thickness 4" Type Media Air Cleaner Warranty Offered Yes Capacity Maximum-850 m³/hr Maximum CFM 950