1 / 7Filtrete 12 × 24 × 1 MERV 11 Air Filters, 6-Pack (AD20-6PK-1E)
Filtrete 12 × 24 × 1 Air Filters (AD20-6PK-1E) are pleated, one-inch HVAC replacement filters rated MERV 11 and MPR 1000. The six-filter pack is intended for compatible furnaces, air conditioners, and HVAC systems, with replacement recommended at least every 90 days.
At a glance
- MERV 11 and MPR 1000 rating. The listing says the filter helps capture household dust, lint, pollen, and other allergens, including pet dander.
- Manufacturer-described 3-in-1 technology is intended to trap unwanted particles while allowing air to flow through.
- The listing identifies the filters for furnace, air-conditioner, and residential HVAC use.
- The Filtrete Smart App can provide 30-, 60-, or 90-day replacement reminders.
Reference price: $70.03
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Six filters provide replacements for repeated changes without buying a single filter each time.
- The listing provides both MERV and MPR ratings, plus a specific stated filter measurement, for comparing against a system's requirements.
- A stated 90-day replacement interval and optional app reminders can help organize routine changes.
Technical specifications
14 specifications| Brand | Filtrete |
|---|---|
| Model | AD20-6PK-1E |
| MERV rating | 11 |
| MPR | 1000 |
| Construction | Pleated |
| Dimensions listed | 23.69"L x 0.81"W x 11.69"Th |
|---|---|
| Weight listed | 2.6 pounds |
| Mounting type | Slide In |
| Shape | Rectangular |
| Material listed | Polypropylene |
|---|---|
| Compatible devices | Air Conditioner, Furnace |
| Compatible HVAC systems | residential |
| Quantity | 6 |
|---|---|
| Recommended replacement interval | at least once every 90 days |
What to know before buying
Listing details to confirm
The title uses nominal 12 × 24 × 1 sizing, while the listed dimensions are 23.69"L x 0.81"W x 11.69"Th. Customer feedback also reports mixed fit, including reports of a filter being too large for standard 14x30x1 return slots. Confirm the required size and slot fit before ordering. The 14x30x1 feedback does not establish a defect in this listed size. The manufacturer recommends changing the filter at least every 90 days.
What’s in the box
Included- 6 filters
Who is it for?
A good fit for
- Households needing a six-pack of MERV 11 replacement filters for a compatible furnace, air conditioner, or residential HVAC system.
- Buyers whose system calls for the listed dimensions and who want a scheduled filter-change routine.
Less suited to
- Anyone whose HVAC slot requires a size other than the filter's listed dimensions or whose system does not accept this filter configuration.
- Buyers who need a filtration rating or capability not stated for this MERV 11, MPR 1000 filter.

Customer reviews on Amazon
- 5 stars
86% 86% - 4 stars
10% 10% - 3 stars
3% 3% - 2 stars
0% 0% - 1 star
1% 1%
Customer feedback describes the filters as working well and removing household dust, while fit experiences are mixed. For this product, check the listed dimensions against the HVAC slot rather than relying on nominal sizing alone. The aggregate rating distribution is largely five-star, but it cannot establish how an individual filter will fit or perform in a particular system.
Positive themes
- Customers report effective dust removal and say the filter works well.
Mixed feedback
- Fit feedback is mixed. Some customers describe a good fit, while others report filters too large for standard 14x30x1 return slots.
Frequently asked questions
How often should this filter be changed?
The manufacturer recommends changing it at least once every 90 days. Actual replacement timing should follow the HVAC system's needs and the stated manufacturer guidance.
Will this fit a 12 × 24 × 1 filter slot?
The title gives nominal 12 × 24 × 1 sizing, while the listed dimensions are 23.69"L x 0.81"W x 11.69"Th. Check your existing filter and slot measurements before purchase. Customer feedback on fit is mixed.
What does the listing say it captures?
The listing says it helps capture dust, lint, pollen, pet dander, and other household particles. It identifies the filter as MERV 11 and MPR 1000.
Are six filters included?
The included-components listing specifies 6 Filters.

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