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
(3,367 Reviews)
Rating breakdown 3,367 reviews
5 Stars
2,670
4 Stars
300
3 Stars
183
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
4
Filters look good. Havent had
on September 28, 2020
Posted by: Isa W.
Filters look good. Havent had time to use yet. Arrival was a couple of days later than forecast, but no big deal.
Written by a customer while visiting Filterbuy
Customer Rating
5
Oddball size and fits wonderfully!
on September 27, 2020
Posted by: Jonathon D.
I found this website while looking for a rather unusual filter size for my apartment furnace and it's working WONDERFULLY at cleaning the air at home to the point of being pleasant to live in after being on the road all day long!I was hoping to go with Filtrete, but am very glad to have found Filterbuy instead!
Written by a customer while visiting Filterbuy
Customer Rating
5
Sturdy
on September 27, 2020
Posted by: Anonymous
Solid cardboard frame box around the filter. Well made. Thank you.
Written by a customer while visiting Filterbuy
Customer Rating
4
Seem like good filters .
on September 27, 2020
Posted by: Anonymous
Seem like good filters . Will know better when it's time to change them and we see what they look like. It did take a while to get them though.
Written by a customer while visiting Filterbuy
Customer Rating
5
This filter helped our indoor
on September 27, 2020
Posted by: Anonymous
This filter helped our indoor air quality so much!
Written by a customer while visiting Filterbuy
Customer Rating
5
Don't really know because I
on September 27, 2020
Posted by: Anonymous
Don't really know because I haven't used them yet. Will have to wait for the next bad air quality day, the next big fire . . .
Written by a customer while visiting Filterbuy
Customer Rating
3
The advertised size listed the
on September 27, 2020
Posted by: Gregg R.
The advertised size listed the L&W as 5/8" shorter than the listed size. The filter works but I have to bend the housing tabs in all the way. Then it still fits loose and moves when the unit powers off/on. Not a big deal, just the gap is a bit too large. Think I'll stick with my previous brand next time.
Written by a customer while visiting Filterbuy
Customer Rating
5
Good price for high quality
on September 27, 2020
Posted by: Anonymous
Good price for high quality MERV13 filters. I opt'd for the subscription plan, receiving two sets of filters once a year so I can change out every six months. Convenient.
Written by a customer while visiting Filterbuy