18x24x1 Air Filters for Furnace & AC

Air cleaners in your HVAC system add an extra level of defense against pollutants and contaminants in your home. So, everyone needs to replace them regularly to increase the efficiency of your system and improve the indoor air quality. MERV (Minimum Efficiency Reporting Value) rating lets you know how efficient an air filter is. The higher the rating, finer filtration of dust particles.

Merv Filters LLC specializes in providing inexpensive filters in the standard and custom sizes. We highly recommend you to change the air filter on a regular basis to maintain the clean air you breathe.

Product Specifications

  • Nominal size: 18x24x1
  • Made in: USA
  • Actual Size: 17 1/2 x 23 1/2 x 3/4
  • Price: $30.40 – $100.80
  • Available in: 4, 6,12 Packs
  • Designed to last: 90 days
  • Pleats made of: Synthetic media
  • Frame made of: Beverage board
  • Delivery Time: Within 3-5 business days from the order date

Benefits of the Merv Filters LLC 18x24x1 Filter


Normally, 18x24x1 furnace filter comes with a lifespan of 3 months. But if you have young children, the elderly, and someone with a history of lung disease is suggested to replace the filter every 30-60 days.

Made In The USA

Our 18x24x1 air filters are manufactured in the USA. We offer special discounts on bulk commercial orders.

Ultra High Quality

Pleated 18x24x1 furnace filter works more efficiently than standard fiberglass filter. Made of beverage board frames that are moisture resistant to provide healthy indoor air. The synthetic filter media holds larger amounts of dust holding capacity.


Ideal for basic and standard residential and commercial use.

MERV 11:

Ideal for standard and superior residential and commercial use.

MERV 13:

Ideal for superior residential and commercial use and smoking lounges.

Note: The colour of ac filter 18x24x1 may differ from the actual product due to lighting effects and variations in your screens.

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