17th Apr 2026, 11:03 AM
Filtrete 21x21x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6 Pack (Actual Size 20.81x20.81x0.81 in)
Price may vary by location, shipping cost, and availability.
$66.57
+ $57.18
Highest: $107.45
Average: $90.58
Lowest: $55.20
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of Filtrete 21x21x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6 Pack (Actual Size 20.81x20.81x0.81 in) here. This product's current Price in USA is $66.57. The average and highest prices are $90.58 and $107.45 respectively. The current offer price of the product is $123.75.
| Lowest Ever Price | $55.20 |
|---|---|
| 3rd Dec 2025 | |
| Average Price | $90.58 |
| Based on 2229 days price tracking | |
| Highest Price | $107.45 |
| 18th Mar 2020 | |
Price History of All Variants of Filtrete 21x21x1 AC Furnace Air Filter MERV...
Current Price in USA
| Price | $66.57 |
|---|
Recent Price Drops on Filtrete 21x21x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6 Pack (Actual Size 20.81x20.81x0.81 in)
Price Drop 5th Mar 2026
$72.22 → $66.46
7.98% drop
Price Drop 6th Feb 2026
$74.07 → $68.81
7.1% drop
Price Drop 2nd Dec 2025
$67.98 → $55.20
18.8% drop
Price Drop 18th Nov 2025
$79.99 → $67.98
15.01% drop
Price Drop 4th Nov 2025
$79.99 → $75.64
5.44% drop
Price Drop 3rd Apr 2025
$90.85 → $79.99
11.95% drop
Price Drop 2nd Mar 2025
$101.04 → $94.10
6.87% drop
Price Drop 10th Dec 2024
$106.99 → $93.35
12.75% drop
Price Drop 27th Aug 2024
$103.10 → $75.03
27.23% drop
Price Drop 16th Jul 2024
$95.21 → $85.63
10.06% drop
Price Drop 10th Jun 2024
$104.96 → $89.21
15.01% drop
Price Drop 17th Oct 2023
$98.17 → $93.07
5.2% drop
Price Drop 23rd Sep 2023
$106.99 → $99.51
6.99% drop
Price Drop 14th Aug 2023
$106.99 → $96.75
9.57% drop
Price Drop 5th Jun 2023
$100.30 → $94.11
6.17% drop
Price Drop 18th Mar 2023
$98.45 → $92.32
6.23% drop
Price Drop 23rd Feb 2023
$106.14 → $85.99
18.98% drop
Price Drop 8th Feb 2023
$84.61 → $78.67
7.02% drop
Price Drop 13th Dec 2022
$81.94 → $77.04
5.98% drop
Price Drop 12th Nov 2022
$102.29 → $86.12
15.81% drop
Price Drop 14th Sep 2022
$99.17 → $82.64
16.67% drop
Price Drop 21st Jun 2022
$94.95 → $72.68
23.45% drop
Price Drop 26th Apr 2022
$75.00 → $70.00
6.67% drop
Price Drop 21st Apr 2022
$90.00 → $80.00
11.11% drop
Price Drop 21st Apr 2022
$80.00 → $75.00
6.25% drop
Price Drop 12th Apr 2022
$79.99 → $70.00
12.49% drop
Price Drop 24th Mar 2022
$102.46 → $85.45
16.6% drop
Price Drop 9th Feb 2022
$79.77 → $75.43
5.44% drop
Price Drop 5th Dec 2021
$81.61 → $73.91
9.44% drop
Price Drop 12th Oct 2021
$83.95 → $78.68
6.28% drop
Price Drop 15th Sep 2021
$74.95 → $69.95
6.67% drop
Price Drop 13th Sep 2021
$82.42 → $74.95
9.06% drop
Price Drop 7th Aug 2021
$79.47 → $67.50
15.06% drop
Price Drop 27th Jul 2021
$94.91 → $79.54
16.19% drop
Price Drop 4th Jul 2021
$79.40 → $67.50
14.99% drop
Price Drop 29th Apr 2021
$80.00 → $63.25
20.94% drop
Price Drop 12th Dec 2020
$88.79 → $83.01
6.51% drop
Price Drop 15th Jun 2020
$94.40 → $71.94
23.79% drop
Price Drop 19th Mar 2020
$107.45 → $94.40
12.15% drop
Product Information
Details
| Product Name | Filtrete 21x21x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6 Pack (Actual Size 20.81x20.81x0.81 in) |
|---|---|
| Store Product Code | B07CZW8HMK |
| Store Name | amazon.com |
| Brand | Filtrete |
| Rating | 9.6 / 10 |
| Category | Furnace Filters |
| Product Manufacturer | 3M |
| Model Number | AD124-6PK-1E |
| Color | 21x21x1 |
| Size | 21x21x1 |
| Dimensions | 20.81"L x 0.81"W x 20.81"Th |
Features
- MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated 1 Filtrete 21x21x1 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filters exact dimensions are 20.81 x 20.81 x 0.81
- EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
- COUNTLESS PARTICLES: With a 1000 MPR and MERV 11 rating, your air filter will help capture many microparticles from the air passing through it
- CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days
- VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system
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Rating and Reviews
9.6 Based on 12505 reviews
Filtrete 21x21x1 AC Furnace Air Filter MERV has 9.6 rating out of 10. This average rating is consist of 12505 individual ratings. You can rate this product at product review page.
* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.