Installing 18x20x1 MERV 13 furnace filter is the first step in upgrading heating and cooling system’s efficiency and improving indoor air quality. As our 18x20x1 MERV 13 filters are crafted using an advanced synthetic air media (utilizing both charged fibers and traditional mechanical filtration principles), reducing pressure drops which allow your system work more efficiently at lower pressures. This filter media with large dust holding capacity is resistant to a variety of chemicals and does not support microbial growth.
Our 18x20x1 MERV 13 furnace filter is great for reducing airborne allergens between 1.0 μm and 0.3 μm. Our filters are chemical free and last up to three months. Merv Filters LLC recommends replacing your HVAC filter more frequently if you have allergy sufferers in your family or pets in your home, especially cats.
We stock a wide variety of standard size filters, however, if you don’t find the filter meeting your HVAC’s needs, order custom size filter. Our custom size filters start as low as $4.99. Consider purchasing online directly from the manufacturer and get benefits of special discounts on bulk orders. We offer multiple payment modes, including American Express, MasterCard, PayPal, and Visa.
Important Note: When it’s time to replacing furnace and air conditioning filters, measure the width, height and thickness of your filter to make sure you get the right size filter. The nominal size written on the pack is usually the rounded number of the actual size. In this case, the nominal size of the filter is 18x20x1, the actual size will be 17.5×19.5×0.75