Filterbuy 18x18x1 MERV 13 Air Filters (4-Pack)

At Filterbuy, we take pride in being a one-stop shop for all your air conditioner, furnace, or HVAC system filter replacements. We offer hundreds of custom sizes in various filtration ratings to ensure you can find the perfect fit, regardless of your specific needs. This allows us to provide you, your family, and your community with access to clean indoor air, enabling you to live and breathe freely.

What makes our products unique? We offer premium features that provide an enhanced filtration experience. Our pleated, electrostatic design captures more particles, and our reinforced beverage board frame can withstand extreme temperatures.

We solve the problem of allowing customers to simply purchase the exact filter size they need from the comfort of their homes. Our robust supply chain ensures we can deliver these custom sizes quickly at no extra cost.

We love being able to provide a service that helps keep our community healthy. We offer a variety of air filter sizes, including 20x20x1, 16x25x1, 20x25x1, and 20x25x5 Honeywell air filters.

The Minimum Efficiency Reporting Value (MERV) rates the ability of filters to trap particles on a scale of 1-20, with 20 capturing the smallest microns. Our MERV 8 air filters are perfect for almost any home or business that wants great indoor air quality at a reasonable rate. MERV 11 air filters are ideal for homes or businesses accounting for factors like pets, smokers, and allergy sufferers. MERV 13 air filters offer the best possible filtration experience, making them perfect for larger homes or businesses.

We also offer MERV 8 air filters with activated carbon, which are perfect for homes or businesses that want to inhibit unpleasant smells while maintaining reliable MERV 8 quality.

When it comes to choosing the correct filter size, the nominal size is a rounded number, while the actual size is the exact measurement. To find the right fit, measure your current air filter and round up to the nearest inch.

Regularly changing your air filter is crucial for maintaining a healthy lifestyle, as dirty air can lead to respiratory issues. We generally recommend replacing your filter every 90 days to keep your system running efficiently and your air clean.

Our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system, as long as you choose the proper size. The number of filters needed depends on the number of vents in your home.

Changing your air filter is a simple process. Turn off the power, remove the cover, take out the old filter, and insert the new one in the direction of air flow. Then, replace the cover and turn the power back on.

At Filterbuy, we are committed to providing clean indoor air for all. We offer a variety of custom sizes, expert services, and a greener design to symbolize the peace of mind that comes from knowing your home or business is being properly cared for.

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