Customer reviews from Filterbuy
Filterbuy - 18x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Average customer rating
4.6
(3,366 Reviews)
Rating breakdown 3,366 reviews
5 Stars
2,670
4 Stars
300
3 Stars
182
2 Stars
73
1 Star
141
Customer Reviews for Filterbuy - 18x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Customer Rating
5
Buy all my filters here
on May 23, 2023
Posted by: Anonymous
Filterbuy filters work great. I have 7 houses I buy filters for and these are great quality at a reasonable price.
Written by a customer while visiting Filterbuy
Customer Rating
5
I have numerous cats and
on May 21, 2023
Posted by: Anonymous
I have numerous cats and this machine takes all the cat smells out of the house
Written by a customer while visiting Filterbuy
Customer Rating
5
Quality filters & great price
on May 21, 2023
Posted by: Nicky B.
Extremely well made & half the cost of brand name filters at home improvement stores, I use Merv 13...my wife smokes & it eliminates any odor...great product
Written by a customer while visiting Filterbuy
Customer Rating
5
Nice filters
on May 19, 2023
Posted by: Anonymous
Great filters great price, would be nice to buy 6 filters then have one shipped ever 3 months compared to having to buy bulk all at once, but still great price
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect fit
on May 19, 2023
Posted by: Anonymous
Had custom filters made for my HVAC and they fit perfectly.
Written by a customer while visiting Filterbuy
Customer Rating
5
Custom Fit Perfect
on May 19, 2023
Posted by: Anonymous
They where custom and fit perfect to size requested
Written by a customer while visiting Filterbuy
Customer Rating
3
Jury still out.
on May 18, 2023
Posted by: Anonymous
My first buy. Product shipped quickly, reasonable packaging, no transit issues. Attractive product price. But, what about the product? Well, the filter is physically robust enough. Firm cardboard frame with sufficient metal grid supporting the filter paper. Filter paper strikes me as thin. Enough to question the MERV rating. Although true size was disclosed, anytime the actual manufactured frame size is less than the title states there is risk to fit and therefore function. They don't fit as tightly as the 3M which had been used previously. Gives me pause. Won't know until a few months of regular operation how it performs, and for the application I'd rather pay more and get a superior filter. After all, that's the whole point or why bother. Nice touch having a preprinted section on the frame to note install date.
Written by a customer while visiting Filterbuy
Customer Rating
1
Get what you pay for
on May 17, 2023
Posted by: Sandip P.
Should have stuck with 3M. These 20x20 filters are narrower on all sides. The filter will not stay in the 20x20 space. Instead, I have to carefully close the register door so the filter doesnt fall out. There are gaps on all sides so really unfiltered air is getting through into my HVAC. Waste of money, and I bought a 6 pack. :face_palm::skin-tone-2::male_sign:
Written by a customer while visiting Filterbuy