Customer reviews from Filterbuy
Filterbuy - 12x36x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Silver
Average customer rating
4.2
(978 Reviews)
Rating breakdown 978 reviews
5 Stars
655
4 Stars
99
3 Stars
77
2 Stars
67
1 Star
80
Customer Reviews for Filterbuy - 12x36x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Silver
Customer Rating
5
Great filters
on July 19, 2026
Posted by: Customer
I have been getting filters from filterbuy. com for many years. They ship quickly and work wonderfully. They are also one of the few places I can get the size filters I need. The filters are quality made and look great.
Written by a customer while visiting Filterbuy
Customer Rating
1
Shady business
on July 13, 2026
Posted by: Customer
Price increased without prior notice, price increase shows after the purchase.
Came without protective packaging.
End result is cancelled subscription.
Came without protective packaging.
End result is cancelled subscription.
Written by a customer while visiting Filterbuy
Customer Rating
4
Correct size filters
on June 22, 2026
Posted by: Customer
Filterbuy Filters actually fit in the size they say. Other brands are too big and won't fit in my furnace.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great job Filterbuy!
on June 13, 2026
Posted by: Customer
Filterbuy went above and beyond. I’ll remain a loyal customer.
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect
on June 10, 2026
Posted by: Customer
Perfect for my air conditioner unit and I have extras for future use, the company is great, delivery is great, price is great.
Written by a customer while visiting Filterbuy
Customer Rating
5
I give the quality a
on June 10, 2026
Posted by: Customer
I give the quality a 100%, and the size fits perfectly into the machines. I will continue to purchase from Filter Buy. Excellent choice
Written by a customer while visiting Filterbuy
Customer Rating
5
20'x20 filters
on May 31, 2026
Posted by: Customer
They fit perfectly because they are just under 20". Thanks for the great service.
Written by a customer while visiting Filterbuy
Customer Rating
1
Don’t fit
on May 30, 2026
Posted by: Customer
First time ordering, the filters don’t fit!! I’m very disappointed.
Written by a customer while visiting Filterbuy