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  5. Filter King 21x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"
Filter King 21x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"
Filter King 21x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"
Filter King 21x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"
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T**7
·
Verified purchase
US
Great quality and shipping was exceptionally quick
Item:
Default
2025-12-18
**
·
Verified purchase
US
Muy buen producto gracias.
Item:
Default
2025-11-19
About this product
Details
With BatteryNo
Dangerous Goods Or Hazardous MaterialsNo
Warranty TypeNo
Battery Quantity0
Battery In The ProductNo
With MaganetNo
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Product description
Our Furnace Filters are designed to last up to 90 days. These pleated 1 and 2-inch air filters are ideal for maintaining the efficiency of your heating and cooling systems. Make sure you measure your filter.
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$3*Unlock price
Free shipping

Filter King 21x21x1 Air Filter | 12-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"

Sold by Filter King
5
(2)
7 sold
Specification:Default
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About this shop
Filter King
Filter King
4.5
134 Sold
25%Ships within 2 days
87%Positive feedback
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Filter King 16x25x1 Air Filter | 6-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 24.5 x .75"

Filter King 16x25x1 Air Filter | 6-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 24.5 x .75"

5.01 sold
$86.19
c**y r**️
Best furnace filters available at an amazing price. I highly recommend to anyone with allergies and or pets
Filter King 20x20x2 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 19.5 x 1.75"

Filter King 20x20x2 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 19.5 x 1.75"

5.02 sold
$49.99
S**n H**f
So easy and convient to have these sent directly to me so I can changed them out
Filter King 19.5x27.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 27.5 x .75"

Filter King 19.5x27.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 27.5 x .75"

5.01 sold
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A**❌
Perfect fit this time around thank you the other ones will be sent back tomorrow
Filter King 7.5x27.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 7.5 x 27.5 x .75"

Filter King 7.5x27.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 7.5 x 27.5 x .75"

5.01 sold
$50.36
A**❌
Being returned! My husband screwd up on the size
Filter King 16x24x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 23.5 x .75"

Filter King 16x24x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 23.5 x .75"

5.03 sold
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d**5
Filter King 22x25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 22 x 25 x .75"

Filter King 22x25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 22 x 25 x .75"

5.01 sold
$44.96
F**y R**9
Filter King 16x25x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 24.5 x .75"

Filter King 16x25x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 15.5 x 24.5 x .75"

5.02 sold
$38.35
K**y
Filter King 20x20x1 Air Filter | 4-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 19.5 x .75"

Filter King 20x20x1 Air Filter | 4-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 19.5 x .75"

5.02 sold
$37.20
S**a
Filter King 12x12x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 11.5 x .75"

Filter King 12x12x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 11.5 x 11.5 x .75"

5.06 sold
$24.96
A** B**n
Filter King 20x25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 24.5 x .75"

Filter King 20x25x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 19.5 x 24.5 x .75"

5.01 sold
$33.95
F** ❌**
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Filter King 18x20x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 19.5 x .75"
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Filter King 18x20x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 17.5 x 19.5 x .75"

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