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General Aire 12758 Filter Media

SKU#: 12758
List Price: $53.18 Sale Price: $44.32
Product Description

Replacement Filter Media.

This component is also known as part number: 4001. This is a MERV 11 air filter for the AC1, AC22, and AC3 model air cleaners. Also known as part B86-222, 4E436 and S1-FM210.

Replace every 6 months if you have heating & cooling OR every 12 months if you only have heating. If you have a dusty environment or shedding pets you may need to replace your filter more often.

The manufacturer is sometimes referred to as General Filters, General Air but is correctly spelled GeneralAire®.


Max Length:
25 1/4 (inches)
Max Expanded Height:
19 1/4 (inches)
Approx. Collapsed Height:
3 1/4 (inches)
6 1/4 (inches)
1 (lb) 7 (oz)
Direction of Air Flow:
Indicated on Product
On Product Packaging

Product Reviews

Add your review of this product Global rating: 5.00 from 26 reviews
Nov 16, 2018
Air Filter by Conrad Schultz (Freeland US)

Fast delivery... easy to install...great product... thanks

Jun 8, 2018
Mrs. by Joyce Birney (Saginaw Mi US)

I received the filter in good time but have not installed it yet. I am waiting for a furnace man to come to check the furnace and change the filter for me.

May 28, 2018
David by David Ericson (COTOPAXI CO US)

I received the part in a short amount of time with no issues.

Apr 28, 2018
Satisfied Customer by Judy Frazier (Cincinnati Oh US)

We have been ordering these filters for our furnace for several,years now and are always very satisfied. The price, service and condition upon arrival is always excellent

Dec 31, 2017
customer by Renato Moncini (Greenville SC US)

Your filters, both the paper and the charcoal, they arrived quickly from yhr time I ordered, they were the correct items. I I orgred 2 set, so I will be ok for a while. thanks for your prompt service.

Oct 14, 2017
Air filter by ( )

Arrived in perfect condition and in just a few days after ordering. Great service and so glad you carry this unusual filter.

May 18, 2017
heat pump filter by Nancy Noell Wilmarth (Gainesville Fl US)

Apr 22, 2017
Furnace Filter review by randy parrella (everett wa US)

delivered on schedule, not damaged and performs well.

Oct 22, 2016
Filter media by Daniel Parker (Madison OH US)

Always good, great filter.

Oct 20, 2016
Excellent by Alandra Daigle (Queensbury NY US)

This is the second order I have placed for these replacement filters and I've save myself double what I paid for them here. I change mine out twice a year due to animals (pets not rodents/pests) and everything works wonderfully.

May 4, 2016
air filter by JIM VASSAR (TIFFIN OH US)

I have been quite pleased with the products that I am using. This also includes the shipping and web site; which is very descriptive.

Apr 20, 2016
Air Filter by Daniel Miller (Manhattan Il US)

Outstanding product, really does the job against dust.

Dec 10, 2015
Quite Pleased by Robert E. Coupland (Andover Ka US)

Very impressed with your service. Even factoring in shipping costs, item was still less than what I could buy it for locally. A little faster shipping would have been nice. Over all, quite pleased with the experience.

Oct 28, 2015
Great product by Scott (Fort wayne In US)

Arrived promptly, easy installation, will Oder again

Apr 11, 2015
Great Product! by Alandra Daigle (Queensbury NY US)

I purchased the filter with reservations of the other reviews. Once the filters arrived the only trouble I really had was getting the filter frame to come apart. Installation was a breeze! No joke 3 minutes and the new filter was in and ready to go. I'll no longer be paying the servicing company to do this for more than double the price.

Apr 10, 2015
Filter Media by Tom Nadolski (Grand Blanc Mi US)

Filters were quickly shipped and well packaged. Filter are good quality and pricing is fair.

Feb 2, 2015
customer by (New Canaan nb CA)

product arrived undamaged, on time and is already installed. works fine

Nov 29, 2014
Great filter-easy ordering by Bonnie Mahoney (Medina Oh US)

Order placed by phone, very competent customer service. Arrived in just a few days. Will definitely be a return customer!

Jan 18, 2014
Another Outstanding Product by Paul Hogle (Grosse Pointe Park Mi US)

I have ordered this replacement air filter several times. Every time, I am impressed by the company's service and the quality of the replacement part. Easy to order, delivery as expected, installed and done!

Jan 3, 2014
Best Filter by Edony Elder (Belleair Bluffs FL US)

The man who came to check our air conditioner, which we do annually, said we needed a new filter. I was charged, in advance $125 for the filter; + $24.99. for the AC checkup. The bill came to $149.99 total. I was flabbergasted as he was only there for about 15 minutes. I looked up the cost of the filter online and found it only cost about $44. I called the AC company and asked why they charged $125 for a $44 filter. They said it was the installation that was the expense. While I am not against companies making a profit I thought that $81 installation fee was a bit much. I paid the $24.99 only and ordered the filter from the above company. It came withing 10 days and I opened the filter unit on the AC, cleaned out the old dirt and put in the new filter. It was a bit fiddly but took me only about 15 minutes to do. I cannot believe that it was such an easy job to replace the old filter and the price was exceptionally reasonable. I would definitely recommend that anyone, but absolutely anyone over the age of 10 could do this job themselves and save quite a bit of money. All you need is a screwdriver to remove the screws on the filter unit of the AC and then replace them when the filter is changed.

Jan 8, 2013
Great Product by Paul Hogle (Grosse Pointe Park MI US)

We moved into a new house and found that our furnace required this special order air filter. We researched it and found where to buy it. Ordered it and it came effortlessly. It is a little tricky to install, with its multiple, folded pleats having to be carefully threaded into the filter spacing device but soon figured out the trick. The product quality is first class and the service was outstanding. When installed, the filter is excellent and works very well with our furnace. Highly recommend.

May 26, 2012
General Aire 12758 Filter Media by ( )

I've used these filters in our HVAC for more than 20 yrs. Easy to install, once you get the hang of it. They seem very effective. Excellent delivery service.

Dec 31, 2011
General Aire 12758 Filter Media by John Snyder (Edmonds WA US)

Oct 27, 2011
Furnace filter by Harold Barr (Fostoria Oh US)

Excellent filter. Working fine.

Sep 11, 2011
General Aire 12758 Filter Media by Art Swanson (Alcester SD US)

Excellant product. I amvery happy with it.

Mar 6, 2011
General Aire 12758 Filter by Maria Williams (Houston TX US)


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