28x30x4 Air Filters for Furnace & AC

Air filters are an integral component of your heating or cooling system. Their main function is to enhance the quality of indoor air and help your system run at its optimal level. When you change your HVAC’s filter regularly, you can promote a healthy environment for your family. In addition, it reduces the energy bills. With all these in mind, you can have a sound sleep at night.

Say goodbye to allergens and hello to better indoor air quality with high-quality 28x30x4 air filters provided by Merv Filters LLC. Available in MERV 8, MERV 11, MERV 13 rating.

Product Specifications

  • Nominal Size: 28x30x4
  • Made in: USA
  • Actual Size: 27 1/2 x 29 1/2 x 3 3/4
  • Price: $122.80 – $322.20
  • Available in: 4, 6 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 28x30x4 Filter


Designed to last for at least 90 days. If you have asthma or other respiratory illness, we recommend you to purchase an air filter with the highest MERV rating (MERV 13), and change the filter every 30-60 days.

Made In The USA

Manufactured by Merv Filters LLC in the USA using 100% American made components. Save big on a bulk order by purchasing directly from the manufacturer.

Ultra High Quality

28x30x4 Furnace Filter’s enclosure frames are constructed of beverage board that stays strong through humidity. 100% synthetic media provides significantly higher particulate efficiency as compared to standard cotton media.


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: Color of the 28x30x4 AC Filter may vary due to lighting effects during the photography or your monitor’s display.

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