18x24x4

Air Filter

 18x24x4 Accumulair Furnace Filter Merv 13 18x24x4 Accumulair Furnace Filter Merv 11 18x24x4 Accumulair Furnace Filter Merv 8 18x24x4 Accumulair Furnace Filter Carbon

Efficiency
APR 1950
APR 1550
APR 650
Carbon

Equivalent
Merv 13
Merv 11
Merv 8
N/A

Performance
Best
Better
Good
N/A

Actual Size
17.5x23.5x3.75
17.5x23.5x3.75
17.5x23.5x3.75
17.5x23.5x3.75

Brand
Accumulair
Accumulair
Accumulair
Accumulair

Item #
FD18X24X4
FA18X24X4
FB18X24X4
FO18X24X4

Purchase

$25.07

Min Qty: 2
Order Options

$21.11

Min Qty: 2
Order Options

$18.47

Min Qty: 2
Order Options

$31.67

Min Qty: 2
Order Options

Product Page
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18x24x4

Air Filter

18x24x4 Accumulair Furnace Filter Merv 13
Efficiency: APR 1950
Equivalent: Merv 13
Performance: Best
Actual Size: 17.5x23.5x3.75
Brand: Accumulair
Item # FD18X24X4

$25.07

Min Qty: 2
Order Options
More Info »
18x24x4 Accumulair Furnace Filter Merv 11
Efficiency: APR 1550
Equivalent: Merv 11
Performance: Better
Actual Size: 17.5x23.5x3.75
Brand: Accumulair
Item # FA18X24X4

$21.11

Min Qty: 2
Order Options
More Info »
18x24x4 Accumulair Furnace Filter Merv 8
Efficiency: APR 650
Equivalent: Merv 8
Performance: Good
Actual Size: 17.5x23.5x3.75
Brand: Accumulair
Item # FB18X24X4

$18.47

Min Qty: 2
Order Options
More Info »
18x24x4 Accumulair Furnace Filter Carbon
Efficiency: Carbon
Equivalent: N/A
Performance: N/A
Actual Size: 17.5x23.5x3.75
Brand: Accumulair
Item # FO18X24X4

$31.67

Min Qty: 2
Order Options
More Info »
Important Information


The manufacturer has discontinued the MERV 6 / APR 450 filters from their line up, our suggested replacement is the MERV 8 / APR 650 Gold filter, you may see the Emerald MERV 6 / APR 450 still on the website, we are actively removing that MERV/APR


** The typical ship time for orders is now around 15 to 20 business days **

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