28th Mar 2026, 09:10 PM
Fortify 20x25x5 MERV 11 Replacement for Lennox X6673, X6661 HVAC Furnace Filter. (Case of 5) Actual Size: 19.7 x 24.7 x 4.38
Price may vary by location, shipping cost, and availability.
0% Off
$138.97
$138.97
Highest: $138.97
Average: $136.78
Lowest: $111.18
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of Fortify 20x25x5 MERV 11 Replacement for Lennox X6673, X6661 HVAC Furnace Filter. (Case of 5) Actual Size: 19.7 x 24.7 x 4.38 here. This product's current Price in USA is $138.97. The average and highest prices are $136.78 and $138.97 respectively.
| Lowest Ever Price | $111.18 |
|---|---|
| 22nd Nov 2025 | |
| Average Price | $136.78 |
| Based on 199 days price tracking | |
| Highest Price | $138.97 |
| 17th Sep 2025 | |
Price History of All Variants of Fortify 20x25x5 MERV 11 Replacement for Lennox...
Current Price in USA
| Price | $138.97 |
|---|---|
| MRP | $138.97 |
| Savings | $0.00 |
| Discount | 0% |
Recent Price Drops on Fortify 20x25x5 MERV 11 Replacement for Lennox X6673, X6661 HVAC Furnace Filter. (Case of 5) Actual Size: 19.7 x 24.7 x 4.38
Price Drop 27th Nov 2025
$138.97 → $111.18
20% drop
Price Drop 21st Nov 2025
$138.97 → $111.18
20% drop
Product Information
Details
| Product Name | Fortify 20x25x5 MERV 11 Replacement for Lennox X6673, X6661 HVAC Furnace Filter. (Case of 5) Actual Size: 19.7 x 24.7 x 4.38 |
|---|---|
| Store Product Code | B0FLKDQGJP |
| Store Name | amazon.com |
| Brand | Fortify |
| Rating | 9.8 / 10 |
| Category | Filters |
| Product Manufacturer | Zephyr Filtration |
| Model Number | FD-LX1142025 |
| Color | White |
| Dimensions | 25"L x 20"W x 5"Th |
Features
- Actual Filter Size: 19.7 x 24.7 x 4.38 | Nominal Size: 20 x 25 x 5 | Recommended to replace every 612 months depending on usage and environment.
- Replacement for Lennox X6673, X6661: Designed to match the performance and fit of the Lennox Healthy Climate X6673, X6661 filters. Fortify provides dependable filtration for whole-house HVAC systems.
- High-Efficiency MERV 11 Filtration: Captures up to 95% of airborne particles including dust, mold spores, pet dander, pollen, and household allergenshelping create a healthier indoor environment.
- Durable Construction for Long-Term Use: Made in the USA with electrostatically charged synthetic media, moisture-resistant frames, and reinforced metal backing to withstand humidity and airflow stress.
- Improves System Efficiency: Deep pleated design delivers low airflow resistance and high dust-holding capacity, helping HVAC systems run cleaner and more efficiently for longer.
Images
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Rating and Reviews
9.8 Based on 18 reviews
Fortify 20x25x5 MERV 11 Replacement for Lennox has 9.8 rating out of 10. This average rating is consist of 18 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.