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The Aprilaire 501 replacement air filter media is effective in the reduction of up to 99% of airborne pollutants inside your home or place of business. Designed with an accordion style frame and SelfSeal technology, the Aprilaire 501 eliminates the chance of pollen, mold and other spore-sized particles from re-entering your air. Aprilaire recommends replacing the Aprilaire 501 every 9 - 12 months for optimal performance and efficiency.

Aprilaire 501 Filter Specifications:

• Part Number: Aprilaire 501
• Dimensions: 16" x 27" x 6"
• MERV Rating: 10
• Filter Life: 9 - 12 months
• OEM Part: Yes

The Aprilaire 501 filter fits the following air cleaner models:

Aprilaire

• Spacegard 5000

Product Reviews :

• 
  Excellent Case
  mcboyd2  Friday, August 03, 2018
  
  simple 2 order, received fast
  
  
• 
  Great service.
  cjcatanese  Sunday, July 22, 2018
  
  Filters arrived on time and are working great.
  
  
• 
  Decent Replacement Filters
  bstauffy1  Wednesday, July 18, 2018
  
  I ordered the replacement filters for my Aprilaire Model 5000 electronic air filter. The price was reasonable. The filters arrived on time in new packaging. The filter quality looks good and are a good fit. No complaints so far and would recommend at this point.
  
  
• 
  Fantastic product
  MMO - Grand Forks County ND  
  
  I would highly recommend this product. Filtersfast
  is an extremely good website. It is easy to navigate, quality product, and it comes pretty quick once you order your filter needs.
  I would highly recommend Filtersfast.com.