Customer reviews from Filterbuy
Filterbuy - 19.75x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Average customer rating
4.7
(5,908 Reviews)
Rating breakdown 5,908 reviews
5 Stars
4,902
4 Stars
498
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 19.75x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Customer Rating
1
Cheap, flimsy. Measures 23 3/8x 23 3/8 too small
on August 21, 2026
Posted by: Customer
Would like a full refund, how do I return for a refund. Ordered 24x24, measure 23 3/8 too small for my return vent.
Written by a customer while visiting Filterbuy
Customer Rating
5
They Fit.
on August 21, 2026
Posted by: Customer
I had a new unit installed and the fan runs continuously. But my electric usage is down. I have four cats and one large hairy dog; live in a dusty environment and need to change filters every two weeks. The big box store was charging almost a dollar more for a MERV 5 filter and I had to bend them to get them to fit, which left gaps along the sides.
These filters fit and they cost quit a bit less than what I would have paid for a MERV 8 in store.
These filters fit and they cost quit a bit less than what I would have paid for a MERV 8 in store.
Written by a customer while visiting Filterbuy
Customer Rating
5
Opps
on August 21, 2026
Posted by: Customer
I bought the wrong size, I did however reorder the correct size and love these air filters. Any one need 25x25. Lol
Written by a customer while visiting Filterbuy
Customer Rating
5
TLP/16x25x2 furnace filters
on August 20, 2026
Posted by: Customer
While I have not yet installed the newly received filters, I suspect they will work just fine. Construction seems nice and durable and I am sure they will perform satisfactorily at better price than what I was paying for the same sized filters from local retailers.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great service and product!
on August 20, 2026
Posted by: Customer
I always hated buying furnace filters. Box stores were always expensive, if they had them in stock. Filterbuy is a very decent price for buying a years worth a time. I change my furnace filter monthly due to have a smaller filter and also with pets. The shipment is always very quick and comes well packaged. Highly recommend Filterbuy!
Written by a customer while visiting Filterbuy
Customer Rating
2
FILTERBUY: 20x25x1 MERV 8 Pleated Air Filter
on August 20, 2026
Posted by: Customer
Thinner than quality filters (supposed to be 1", but it is not). Does not provide a proper seal. Air can leak around border
Also, cardboard not as sturdy/thick as my usual brand.
Also, cardboard not as sturdy/thick as my usual brand.
Written by a customer while visiting Filterbuy
Customer Rating
5
Quality Filters
on August 20, 2026
Posted by: Customer
I have used these filters for years. Recommend them highly. Punctual delivery, too!
Written by a customer while visiting Filterbuy
Customer Rating
5
Just installed one a few
on August 19, 2026
Posted by: Customer
Just installed one a few weeks ago. I am waiting to see how they work.
Written by a customer while visiting Filterbuy