20x25x4 AIRx ALLERGY TopTech TT-FM-2025 Replacement Air Filter - MERV 11, 2-Pack

Model: 20x25x4TT-ALLERGY / Part: #177890

5
156 review(s)
 
Average rating 4.6/5
5 stars
(133)
4 stars
(8)
3 stars
(3)
2 stars
(4)
1 star
(8)
  •  Free Returns
  •  100% Compatibility Guarantee
20" X 25" X 4" Replacement For TopTech TT-FM-2025
TOTAL $71.90 ( 2 Pack for $0.00 each )

In Stock

Ships Monday

Is this the right air filter for you?

If you want superior indoor air quality (IAQ) for your family, this filter is for you!    This filter removes many allergy-causing pollutants like pollen and dust mite debris and keeps your air clean.   We promise convenient ordering and complete satisfaction!

  • Quality 4" pleated air filter offers improved filtration and longer service life over common 1" filters 
  • MERV 11 rating means the filter attracts and holds household allergens like dust, pollen, mold spores, and other small particles that irriate your lungs
  • Replaces the TopTech TT-FM-2025 filter - nominal size 20x25x4 (actual size 19-3/8" x 24-3/8" x 3-5/8")
  • Will also replce the new TopTech "QwikBox" filter, part number TT-FM-2025QB
  • Replace every 6 months under normal use
  • Made with pride in the USA
  • Fast Shipping and Free Returns on all filters

What does this air filter remove?

What part numbers does this filter replace?

  • Toptech TT-FM-2025, TT-FM-2025QB

What air cleaners does this filter fit?

  • TopTech TT-MAC-2025, TT-MAC-2522
Do you want to know about the technical specs?

Nominal Dimensions 20 x 25 x 4"
Actual Dimensions 19-3/8" x 24-3/8" x 3 -5/8"
Filter Media Electrostatically charged 100% synthetic gradient media that does not support microbiological growth
Filter Support Grid 30 gauge galvanized expanded metal grid
Frame Moisture resistant double-wall beverage board
Max Temperature 180F (82C) continuous service, peak 225F (107C)
Max Humidity Resistant to 100% R.H.

Reviews

5
4.6 / 5 (156)
Kenneth Law 2 days ago
5
I have been using these filters for several years and I am totally satisfied. I highly recommend them.
Priscilla Bergeron 19 days ago
5
Nice filter, good quality and it fit my HVAC unit unlike some of the other brands I tried. Actual dimensions are printed on the filter.
John Freestone 21 days ago
5
Great product for allergies
KENT PILLATSCH 15 days ago
5
Good quality and almost 1/2 the cost of purchasing locally and shipping was free.
Thomas 25 days ago
5
Fits my factory 4inch perfectly
Teresa Abram 12 days ago
5
These are very good filters and we always get the right size from Discount Filters. We wasted time buying them locally at first and they did not fit -- even though they had the same numbers on the package. I just wish they were a little less expensive.
Rodger D 28 days ago
5
Most filters are about the same and most users really don’t know the difference as change as frequently as they should. What stood out was they arrived damaged cbox, after notifying company replacements were on the way, best ever resppnsr
Larry 17 days ago
5
Fits well! I'm totally satisfied!!!
m wolfe 30 days ago
5
We use this filter for our HVAC, it's the triple size and only needs to be changed every 6months. VERY well priced!
Robert Franklin Burch 25 days ago
5
Fins & seems to work find. Order & delivery service was good and quick
Carmen c Galvez 2 days ago
5
Good product.
sey katz 12 days ago
5
Delivery was quick and the product works beautifully.
Steve 20 days ago
5
Good quality and good prices
Debra E. Miller 19 days ago
5
Excellent product, and service.
Carmen c Galvez 23 days ago
5
Good price.
Hyacinth 27 days ago
5
Have been using these filters since 2019, Discount Filters are a great company to deal with and service/shipping are prompt. You won't be sorry you chose them.
Richard O'Dell 16 days ago
5
The price is great and the TopTech filters are the only ones that fit my HVAC system.
Rita Cappelletti Jung 23 days ago
5
Great price!
Terry Brown 10 days ago
5
This filter always does an excellent job.
scott thurgood 15 days ago
5
Good product and your service representative are very courteous and professional
Charlotte Brinkley 0 day ago
5
Top quality came quickly so easy to order, will order again.
C J Wright 15 days ago
3
The filter is only about 3 1/3 inches wide. Not 4 inches as described
Michael McGee 15 days ago
5
Both filters for our HVAC fit perfectly! And they were much more cost-effective than local hardware stores. We've also been buying fridge filters from DiscountFilters for years. Never had a problem.
Cynthia Bonacci 6 days ago
5
Good price, fast delivery ?
Tom 0 day ago
5
fast service and great price
Sharon Conner 0 day ago
5
Very good product and service
Okie 1 day ago
5
Equal to spec filter. Pleased with savings and service
Jerry Brewer 9 days ago
5
It fits to provide excellent dust reduction for 6 months or more. I will change a 6 months mostly clean filter to reduce dusting. I truly appreciate the 2 for the price of 1 during these inflationary time. Discount Filters exhibits ethics and morals.
Paul M Dow 27 days ago
5
This is my first purchase from this company. The filters were shipped promptly and I am currently using one. I am not an expert on filters, so my ratings are essentially guesstimates.
Judith Nichols 21 days ago
5
Great price, quality product, fast delivery!
Hamburg DQ Grill 21 days ago
5
easy ordering, fast delivery
Edward Moy 25 days ago
5
Excellent!
billy edwards 30 days ago
5
Best service on the internet
Kenneth Law 3 days ago
5
Filters meet all my expectations.
Janice Joyner 3 days ago
5
The filters arrived on time, even earlier than expected, and were exactly the size I needed. Very pleased with the service.
GINGER CLAMPIT 4 days ago
5
Always receive filters quickly.
Rosendo Vasquez 16 days ago
5
As for the product itself, I am glad there is a filter that I do not have to change monthly. And I receive the order promptly.
Ashwini Sawhney 27 days ago
5
Excellent
Michele Blazina 0 day ago
5
great value
Robert Higginbotham 1 day ago
5
Always pleased with products from you.
ilene araten 1 day ago
5
My second order of air filters. Completely satisfied
Jeanine Marchica 3 days ago
4
Good product. A bit hard to pull out and put in overall I would recommend it.
Kenneth Law 3 days ago
5
Great quality.
Judith Nichols 4 days ago
5
Website was easy to use and products received in timely manner. I bought a 2 pack of each size filter. Only improvement would be that each was cellophane wrapped separately for easier storage.
Gene Garrison 9 days ago
5
Great filter. Always works perfectly and I’m not getting ripped off by our service man.
Barbara Walker 14 days ago
5
Have used product before please with performance
Raymond Laird 6 days ago
5
Excellent filters that are an exact fit at a very fair price. And shipping was free.
Richard Gwynn 11 days ago
5
Product is very good along with great service and nice pricing.
Kenneth Law 27 days ago
5
Very satisfied with the product.
Paulette Hemmings 28 days ago
5
Great product and customer service! Would purchase it again!
SUSAN H LUGO 5 days ago
5
Very efficient company to order from with quality products
Matthew McDonald 30 days ago
5
Very good deal for the price. And the delivery is great.
Diane Page 23 days ago
5
Very good quality - great price
CHARLES DOUGLASS 5 days ago
5
Ten charactures
tom broderick 8 days ago
5
Product was as described and works great
Jacquelyn Sammons 23 days ago
5
It really does make a difference. We live in an older home. I could not live here I do not think with out them. I am always surprised at the amount of garbage they trap. Very pleased
Lech R Blachura 22 days ago
5
Good service
Cynthia Bonacci 27 days ago
5
Second time we purchased this filter. Fast delivery and less money than buying through air conditioning company. Will be buying thru you again !
John Dalton 8 days ago
5
I just got it today and installed it; however the customer service in getting it here,was GREAT! the price,quality,is also GREAT free shipping 20% off whats not too like ?
Otto Beer 20 days ago
5
factory installed filters
Frank Elim 23 days ago
5
This purchased item was the first A/C air conditioner filter that perfectly fits in the return area plenum within the stacked, metal framing region of our indoor central air-handling region. All other such 20x24x4 air-filters were not good fits, including the product provided by the A/C seller and installer about 4-5-years ago... and on an ongoing replacement basis. No more crunching necessary to force fit an oversize item into the chamber rack for retaining the filter. Salesperson on-phone manner was most polite an helpful. Thank You. Frank Elim
Tom Lainson 23 days ago
5
Delivered as promised and noticed a drop in dust also. Filters last longer than cheaper ones so cost is not too much different.
Roy 29 days ago
5
very good value as compared with big box stores
Kelly Duke 5 days ago
5
Very satisfied.
m wolfe 24 days ago
5
After finding this company, would not even think of buying my filters elsewhere. Our HVAC system requires the triple pac filters and they are pricey. Discount Filters sells what we need at a huge price reduction from our local stores. VERY happy with this company!!
spsummey 26 days ago
5
The filter is too expensive. I understand from my HVAC technician that there are equally as good filters on the market at a more reasonable price.
William Hart 28 days ago
5
Excellent product and easy to order.
Luther W Sims 11 days ago
5
Great product and value
John Zidanich 14 days ago
5
MERV 11 Allergy filter does a great job in my house,helps with my allergy conditions!
Paula J. Bradley 28 days ago
5
It was reasonably priced, no shipping fees, and it came when promised.
Jennifer Carey 8 days ago
3
Compared to the name brand filter I had in my machine, this felt a bit flimsy with fewer filter bends. I don't think I will go with this purchase next time.
Jay 26 days ago
5
Great product. Fast delivery.
Jerry McBride 8 days ago
5
The filter has been perfect for my needs. I couldn't ask for any better and the customer service has been great. I recently experienced a shipment delivery problem where the delivery box was smashed and crushed-in. Inside the box were two filters that were damaged. I informed customer service, displaying pictures of the damaged box and the filters, and they sent me an entire replacement shipment and had me throw out the damaged filters, all at no additional cost to me. I shall always be using Discount Filters for my system needs.
LEE E THOMAS 8 days ago
5
good product
S Meadors 17 days ago
5
Great product, fast shipping. Thanks
Patrick Tanner 17 days ago
5
These are very high quality air filters.If you buy them singly at a big box store,they are easily $30.A two pack brings that price down,and delivered.
Tara Stafford 23 days ago
5
Filters arrived promptly and is a perfect match for our home. This item was well priced and I will buy from this company in the future.
Valued Customer 27 days ago
5
Good Product and a great price. Hard to get the higher MERV numbers locally so this was very helpful.
Joan Nelson 7 days ago
5
Filter fit perfectly after I had ordered the wrong size. Contacted customer service for advice. They refunded my mistake and guided me to the correct item. Very Good!
David Gunther 11 days ago
5
Seems to work fine, but the 2 I bought were a year's supply. Please notify me with your next sale.
Cynthia Bonacci 19 days ago
5
Just as ordered! Great price!!!! Totally recommend to make your filter purchases here!!
James S. 19 days ago
5
Have been using these high quality filters for about 3+years now, and they're always correct fit, and save me many $ over OEM replacementrs.
Jerry Towers 20 days ago
5
Fit right in the Top Tech filter holder, have had problems with other filters fitting this filter holder, but this one fit perfectly.
John English 1 day ago
5
Really good filter, price, and service. Highly recommend this company. JE
Steve Rigdon 4 days ago
5
Great quality furnace filter- quick shipping- very pleased and will reorder
Blaine Mueller 18 days ago
5
I’m very happy with the filters that I got They arrived quickly but on package had been crushed making the filters unusable I contacted customer service. They shipped an other package that day they arrived with no problems. Very happy will be ordering from this company again
Margarita Gomez 26 days ago
5
Customer service is prompt and excellent!
Don Andersen 28 days ago
5
Can un damage and seems to be performing fine
keith myrick 30 days ago
5
I finally got around to installing my top tech filter I am very pleased with this product and the price. Keith M
Ccleri 5 days ago
5
We try and get all our filters here. The customer service is excellent and product ships right away.
Augusta Gold 1 day ago
5
Have been buying from discount filters for sometime now very pleased with the product in the price
Jeff Hatton 16 days ago
3
Dimensionally a bit small, but will serves the purpose for a cheap filter.
John 19 days ago
5
Best and only place to purchase these size filters! Perfect fit every time!
Kevin Walls 20 days ago
5
Love the filters ! All of our residents just LOVE the filters, the price is exceptional and perfect fit to our HVAC systems. Exceptional Customer service and Delivery timing. We will be ordering again !
Robert A. Bonnette 14 days ago
5
great filter great price!
R McCorkle 13 days ago
5
Difficult to find replacement for TopTech/TechPure TT-MAC-2522 unit TT-FM-2025 filter Nominal Dimensions 20 x 25 x 4" Actual Dimensions 19-3/8" x 24-3/8" x 3 -3/4" Better than the one that came with the unit. These are NOT the QuickBox "some assembly required". These are ready to install. They slide in very easily.
Raymond Laird 28 days ago
5
Better product at a savings of over $250.00. Replacement for OEM from HVAC company is over $80.00 per filter.
Rita Cappelletti Jung 29 days ago
5
Great price ! I usually change the filter twice a year now I can do it quarterly.
TRACY MCCANN 27 days ago
5
ordered filters that were hard to find locally without be extremely expensive these were great..
Bonnie Smith 11 days ago
5
Filter was a perfect fit!!
JEFF MAKER 7 days ago
5
Absolutely no problems. Saved money, product shipped on time and the whole process was easy.
Walt Harris 17 days ago
5
Order process was easy, filter fits and functions as the original, but at half the price I was paying the heating/air company servicing my HAV. Very hard to fine this size in the local "big box" stores
Darryl Austin 20 days ago
5
Perfect fit...excellent pricing!!!

Replaces These Filters:

National Filter Sales:
20x25x4
PF-02-202504TT-2
TopTech:
TT-FM-2025
TT-FM-2025QB

Fits In These Systems:

TopTech:
TT-MAC-2025
TT-MAC-2129
TT-MAC-2522

No Instructions Yet.