Retail-$43.16

• Nominal size: 14x14x1; Actual size: 13 3/4"x13 3/4"x3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7. 
• Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke 
• Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months 
• 100% synthetic electrostatic media for high efficiency with low air flow resistance