FILTRATION: With high filtration efficiency, the MERV 8 Pleated HVAC Furnace air filter effectively capture unwanted air particles to help improve the overall air quality in your home. EASY TO READ AND USE LABEL: With a location on the label to let you easily mark the date you have installed the filler, helps you to know when it is time to replace the air filter. Locate the air flow direction to quickly install the filter into your HVAC system. REPLACEMENT TIME: For optimal performance, replace every 90 days, or sooner if the filter becomes dirty or damaged. DIMENSIONS: The HVAC air filter's nominal dimensions are: 16 x 25 x 1 in. Actual filter dimensions: 15.5 x 24.5 x .75 in. CONTENTS: Included in the package are eight (8) MERV 8 HVAC filters. At Filter-Monster, we believe in making a clear statement while also being conscious of the air quality around us. Enhance the air quality of your home with the Filter-Monster branded MERV 8 1" Pleated HVAC Air Conditioner Furnace Replacement Air Filters. The MERV 8 Pleated HVAC Furnace filter has easy to read and use air filter labels, allowing you can easily mark the date you installed the filter giving you peace of mind on when it is time to replace your filter. The label also includes an easy to read air flow indicator to help ensure correct filter installation. For optimal performance, it is recommended to replace the HVAC filter every 90 days or sooner if the filter becomes dirty, damaged, or depending on air quality and environmental factors. The HVAC air filter's normal dimensions are: 16 x 25 x 1 in. Actual filter dimensions: 15.5 x 24.5 x .75 in. Included in the package are twelve (12) replacement filters. Enjoy up to 3 years of filter coverage with this value saving option.