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21x21x1 Air Filter (Furnace or AC)

Efficiency

Equivalent

Performance

Actual Size

Brand

Item #

Purchase

More Info

Efficiency: APR 2250
Equivalent: N/A
Performance: Best
Actual Size: Actual Size
Brand: Accumulair
Item #: FI21X21A

$17.99

Min Qty: 2
Efficiency: APR 2250
Equivalent: N/A
Performance: Best
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FI21X21

$17.99

Min Qty: 2
Efficiency: APR 1950
Equivalent: Merv 13
Performance: Best
Actual Size: Actual Size
Brand: Accumulair
Item #: FD21X21A

$15.99

Min Qty: 2
Efficiency: APR 1950
Equivalent: Merv 13
Performance: Best
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FD21X21

$15.99

Min Qty: 2
Efficiency: APR 1550
Equivalent: Merv 11
Performance: Better
Actual Size: Actual Size
Brand: Accumulair
Item #: FA21X21A

$11.99

Min Qty: 2
Efficiency: APR 1550
Equivalent: Merv 11
Performance: Better
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FA21X21

$11.99

Min Qty: 2
Efficiency: APR 650
Equivalent: Merv 8
Performance: Good
Actual Size: Actual Size
Brand: Accumulair
Item #: FB21X21A

$9.99

Min Qty: 2
Efficiency: APR 650
Equivalent: Merv 8
Performance: Good
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FB21X21

$9.99

Min Qty: 2
Efficiency: APR 450
Equivalent: Merv 6
Performance: Basic
Actual Size: Actual Size
Brand: Accumulair
Item #: FC21X21A

$7.99

Min Qty: 2
Efficiency: APR 450
Equivalent: Merv 6
Performance: Basic
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FC21X21

$7.99

Min Qty: 2
Efficiency: Carbon
Equivalent: N/A
Performance: N/A
Actual Size: Actual Size
Brand: Accumulair
Item #: FO21X21X1A

$14.99

Min Qty: 2
Efficiency: Carbon
Equivalent: N/A
Performance: N/A
Actual Size: 20.5x20.5x1
Brand: Accumulair
Item #: FO21X21X1

$14.99

Min Qty: 2

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