1 / 4Filter King FKFA08X20A-6 8×20×1 MERV 11 Air Filters, 6-Pack
Filter King FKFA08X20A-6 is a six-pack of MERV 11 pleated filters listed for air conditioners and furnaces. The listing gives an actual size of 8 × 20 × 0.75 inches, so confirm that thickness and the fit of your filter slot before ordering.
At a glance
- MERV 11 rating for residential AC or furnace applications, according to the listing.
- Pleated filter design, with a slide-in installation described as open, slide and close.
- The six-filter pack is listed for replacement intervals of 30 to 90 days for one-inch filters, depending on conditions.
Reference price: $94.02
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Six filters provide multiple replacements in one pack.
- The listing specifies MERV 11 and identifies both air conditioners and furnaces as compatible device types.
Technical specifications
12 specifications| Brand | Filter King |
|---|---|
| Model | FKFA08X20A-6 |
| MERV rating | 11 |
|---|---|
| Compatible devices | Air Conditioner, Furnace |
| HVAC system type | residential |
| Shape | Rectangular |
| Mounting type | Slide In |
| Dimensions listed | 20"L x 8"W x 0.75"Th |
|---|---|
| Advertised nominal size | 8" x 20" x 1" |
| Advertised actual size | 8" x 20" x .75" |
| Material listed | Polypropylene |
|---|---|
| Number of filters | 6 |
What to know before buying
- The listing describes the filters as nominally 8 × 20 × 1 inches but gives an actual thickness of 0.75 inches, consistent with its stated actual size of 8 × 20 × .75 inches. Measure the existing filter and verify the slot dimensions before purchase. The up-to-90-day life is a listing claim, and the stated replacement recommendation is every 30–90 days for one-inch filters.
What’s in the box
Included- Air filters (6)
Who is it for?
A good fit for
- Households replacing a slide-in residential AC or furnace filter that matches the stated dimensions and MERV 11 rating.
- Buyers who want six replacement filters in one pack.
Less suited to
- Anyone whose system requires a different filter size or thickness, or whose equipment instructions do not support this filter rating.
Customer reviews on Amazon
- 5 stars
69% 69% - 4 stars
10% 10% - 3 stars
6% 6% - 2 stars
4% 4% - 1 star
11% 11%
Aggregate customer ratings lean positive, with many five-star ratings, but also include lower ratings. The small sample and lack of review details do not establish what customers liked or disliked, or how these filters perform. Buyers should base fit decisions on the listed MERV rating and actual dimensions.
Frequently asked questions
What is the stated actual size?
The listing gives an actual size of 8 × 20 × 0.75 inches, while the product title uses the nominal size 8 × 20 × 1 inches. Check your existing filter and slot before ordering.
How many filters are included?
The product is listed as a six-pack.
How often does the listing recommend replacement?
It recommends changing one-inch filters every 30 to 90 days and says these filters can last up to 90 days. Actual timing depends on use and conditions.
Which equipment is listed as compatible?
The listing names air conditioners and furnaces and specifies residential HVAC systems.
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