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forum threadJohnDubya posted Jun 24, 2026 7:36 PM

[S&S] $33.73: Filtrete 18x20x1 AC Furnace Air Filter, MERV 11 MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack

$34

$60

43% off
Amazon
1 Comments
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Deal Details
Amazon.com [amazon.com] has Filtrete 18x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 17.81 x 19.81 x 0.81 in) on sale for $33.73 with Subscribe & Save.

Walmart [walmart.com] has it on sale for $43.98 ($11.00/ea).

Deal Info:
  • Current price: $33.73
    • Around 25% ($11.13) below my observed 90-day average price of $44.85
  • Observed price range:
    • 120-day range:
      • Low: $35.50
      • Average: $44.21
      • High: $66.22
  • As of June 24, 2026. Price and availability may change.

Details:
  • Brand: Filtrete
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon.com [amazon.com] has Filtrete 18x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 17.81 x 19.81 x 0.81 in) on sale for $33.73 with Subscribe & Save.

Walmart [walmart.com] has it on sale for $43.98 ($11.00/ea).

Deal Info:
  • Current price: $33.73
    • Around 25% ($11.13) below my observed 90-day average price of $44.85
  • Observed price range:
    • 120-day range:
      • Low: $35.50
      • Average: $44.21
      • High: $66.22
  • As of June 24, 2026. Price and availability may change.

Details:
  • Brand: Filtrete

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1 Comment

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Jun 25, 2026 12:50 AM
1,358 Posts
Joined Dec 2007
hkimbJun 25, 2026 12:50 AM
1,358 Posts
Need 20x20 and 12x12.
2

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