Price History for 17 in. x 21 in. x 4 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack)
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17 in. x 21 in. x 4 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack)
The Filterbuy replacement air filter 17x21x4 (actual size: 17.00 in. x 21.00 in. x 3.63 in.) ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to hel
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Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Oct 18, 2026 | $163.95 |
| Jan 25, 2026 | $129.95 |
| Dec 14, 2025 | $122.50 |
| Oct 28, 2025 | $122.50 |
| Oct 18, 2025 | $122.50 |
| Oct 16, 2025 | $122.50 |
6 recorded prices; last found in Home Depot’s data on Nov 4, 2026. How we track prices
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Analysis
17 in. x 21 in. x 4 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) price analysis
Price analysis for 17 in. x 21 in. x 4 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) at Home Depot: today's price of $163.95 is the highest price we've recorded for this listing.
- Currently listed at $163.95, which is $41.45 above the original MSRP of $122.50.
- Today's price is 20% above its average daily price over the last 90 days ($136.75).
- The lowest recorded price on PriceWatchPro was $122.50 on October 16, 2025. That's $41.45 below today's price.
- The highest recorded price on PriceWatchPro was $163.95 on October 18, 2026.
- No meaningful price drops recorded in the tracked history — this listing has held steady or trended upward.
- PriceWatchPro has been tracking this listing since October 16, 2025 (384 days of price history).
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Compare 17 in. x 21 in. x 4 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) prices across retailers
Same item (UPC 717267285827), also tracked at:
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