GeneralAire Air Cleaner Filter Media, 20" x 25" x 6", MERV 11, for AC1, AC22 and AC3

Free shipping unlocked!

Free shipping NOT unlocked!

GeneralAire Air Cleaner Filter Media, 20" x 25" x 6", MERV 11, for AC1, AC22 and AC3


GeneralAire RESERVEPro Air Cleaner Filter Media. This filter media is rated for MERV 11 cleaning and features microfiber construction for the reduction of airborne particles and contaminants. As this is replacement media only, this is an accordion-style filter that expands to fit inside the filter frame assembly. The GeneralAire 12758 MERV 11 microfiber expandable media filter efficiently traps unwanted airborne particles while allowing free flow of cleaner air to maintain your system's energy efficiency. Because it helps keep your system's components cleaner, you can expect less wear and tear for longer life. This filter has a 75% dust spot efficiency at capturing microns between 1.0 to 3.0. It has a no tear design and is strong enough to handle a full year of filtration.

For use with GeneralAire air cleaner models 4422, AC Series 1 AC1, AC-1 , AC3, AC-3, AC Series 22, AC22, and AC-22.

Also fits Carrier 31MF, 31MF020, 31MF120, 31MF02001, 31MF020100, Bryant 902B, 902BX, 902BXX020, 902BXX020-A, and Source 1 S1-MAC11202506, S1-FM11202506.

The GeneralAire 12758 is also known as 4001, B86-222, 4E436 and S1-FM210 and is a replacement for Carrier/Bryant 88NA2506MB01.

This filter is recommended to be replaced every 6 - 12 months (depending on usage) to achieve the best results.

Also known as: General Filters, General Air, General Aire, GeneralAire.



  Filter Type: Pleated
  MERV Rating: 11
  Nominal Size (in): 20 x 25 x 6
  Package Quantity: 1
  Thickness (in): 6


Breathe easy with the PureFilters Promise

Clean indoor air is essential to our well-being, and Canadians deserve a company that offers products to help them live a healthier life. PureFilters was founded with one mission - to help Canadians enjoy clean and healthy indoor air at an affordable price. 

From quality products to hassle-free returns, to superior customer service - our team at PureFilters is ready to help you with your order. Feel free to contact us via live chat, or email us at if you need help with your order.