The GeneralAire F1020, 4562 is a MERV13 filter media cartridge measures 20" x25" x4" approximately, and is the correct filter replacement for GeneralAire TERSus 2000 Systems. These GeneralAire MERV 13 filters remove airborne allergens and particles as small as 0.3 micron to improve indoor air quality significantly to make it comfortable year round. The GeneralAire MERV 13 electrostatic high-efficiency particle filtration removes allergy causing mold spores, pollen and lung-damaging dust. These GeneralAire Air Purification System filters remove up to 94.2% of harmful microscopic airborne particles. They also help keep A-coils, ducts and fan motors clean and operating at optimum performance.
GeneralAire F1020, 4562 Air Filter Replacement Specifications:
- Part Number: 4562, F1020
- Includes 1 Air Filter Cartridge
- Easy to Install
- Filtration Media: Electrostatic Particle Filtration
- Rated: MERV 13
- Dimensions: 20" x 25" x 4"
- Maintenance: GeneralAire system air filters must be replaced every six months
- Replacement filter for the General Air TERSus 2000 System
The GeneralAire F1020, 4562 MERV 13 Filter Media Replacement is the replacement filter for the following GeneralAire Systems:
- GeneralAire TERSus 2000 Air Purification Systems
The Filters Fast® 4-inch Air Filters (FFM136) have a MERV 13 rating and are useful in a variety of settings, including homes, offices, and industrial sites. These MERV 13 filters effectively reduce pollen, dust, pet dander, mold spores, and dust mites, as well as bacteria, smoke, smog, and other allergens. The higher quality construction from these 4-inch filters benefits health and respiration, including alleviating problems with allergies and sinus irritation that might lead to itchy throat, watery eyes, coughing, and sneezing. 4-inch air filters are also more effective than thinner filters because their larger surface areas are much more durable. Filters Fast® air filters are affordable without sacrificing quality. These HVAC air filters arrive in a variety of sizes to meet your air quality needs.
Note: These filters do not contain fiberglass.
Specifications:
- Brand: Filters Fast®
- Part Number: FFM136, Ffm1362
- Pack Size: 3
- Filter Life: 6 - 12 months
- MERV Rating: 13
Available Sizes:
The Filters Fast® M13 Air Filters are available in the following sizes:
| Nominal Size | Actual Size | Alternate Part Number |
| 12x24x4 | 11.375x23.375x3.625 | PF13.0412243PFF, ffm136-12244 |
| 16x20x4 | 15.375x19.375x3.625 | PF13.0416203PFF, ffm136-16204 |
| 16x25x4 | 15.375x24.375x3.625 | PF13.0416253PFF, ffm136-16254 |
| 18x24x4 | 17.375x23.375x3.625 | PF13.0418243PFF, ffm136-18244 |
| 20x20x4 | 19.375x19.375x3.625 | PF13.0420203PFF, ffm136-20204 |
| 20x24x4 | 19.375x23.375x3.625 | PF13.0420243PFF, ffm136-20244 |
| 20x25x4 | 19.375x24.375x3.625 | PF13.0420253PFF, ffm136-20254 |
| 24x24x4 | 23.375x23.375x3.625 | PF13.0424243PFF, ffm136-24244 |
| 25x29x4 | 24.375x28.375x3.625 | PF13.0425293PFF, ffm136-25294 |
Please note that if you are unsure whether you need an actual or nominal size simply measure your air filter before placing your order.
We can make any size filter! Click here if you don't see your size! NOTE: Custom made air filters do not come individually wrapped.
Resources:
FFM13 Air Filter - MERV 13 - Specification Data Sheet
Customer Reviews
Total Reviews: 37 | Average Rating: 4.75 / 5.0
customer2023-01-28First time using whole house filters. Shipping needs to be improved. Every order I’ve had in past has been dented in the corners and this was no exception. Fortify your boxes please.
Collected by Trustpilot.com Tami C. Elton2023-01-25I hope to continue using this product for many years!
Collected by Trustpilot.com Martin Czako2023-01-14Other places were priced much higher. Couldn't find a multi-pack.
Collected by Trustpilot.com customer2023-01-13yyuuup uiu[pj o[[[[[[[[[[[[[[ jjhh ftuio oppgf gg frf
Collected by Trustpilot.com Lynne Patterson2022-11-19Best price I could find for these filters. They came in a box perfect for storing in the ceiling beside the unit.
Collected by Trustpilot.com Erik Werts2022-11-19Happy with purchase.
Collected by Trustpilot.com Larry2022-10-30Actual size doesn't fit my furnace, so these filters are no good and will be thrown away.
Collected by Trustpilot.com customerCarroll Peterson2022-09-01Sure beats groveling around in a store. Plus you have great products at a fair price. Couldn’t be more satisfied.
Collected by Trustpilot.com RHONDA T.2022-08-11They fit well.
Collected by Trustpilot.com MIKE DEVITT2022-08-11Works good and looks good
Collected by Trustpilot.com Leigh2022-07-30High quality, much better than the old ones we used to use.
Collected by Trustpilot.com Dean2022-07-19Unfortunately, there was no label on the filter themselves, but the label is on the shipping box. I'm not sure if this is to save money but it was confusing on my part. Have not used them yet. Got them in advance. I bought them while on sale.
Collected by Trustpilot.com Debra2022-07-18xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Collected by Trustpilot.com Diane Monroe2022-05-22It works.
Collected by Trustpilot.com Michel P2022-05-21I have been using these filters for about 4 years. They are terrific. The amount of dust they pull out of the air circulating in our house is dramatic. We can immediately tell the difference in the air when we change them out. We are so glad we made the move from the thinner filters to this product.
Collected by Trustpilot.com KEN WEDERSKI2022-04-10Perfect size and arrived very quick!
Collected by Trustpilot.com Denny Deemer2022-03-19Very good product and satisfied with delivery service
Collected by Trustpilot.com Tom2022-03-03Perfect High Quality fit
Collected by Trustpilot.com Ivan R.2022-01-13Product is exactly what I need.
Collected by Trustpilot.com Karen D Gardner2021-11-18They are very expensive, but they are expensive everywhere. I love the service, quick and efficient, from FiltersFast.
Collected by Trustpilot.com
