16x21x4Air Filter |
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Efficiency |
APR 1950 |
APR 1550 |
APR 650 |
APR 450 |
APR 450 |
Carbon |
Equivalent |
Merv 13 |
Merv 11 |
Merv 8 |
Merv 6 |
Merv 6 |
N/A |
Performance |
Best |
Better |
Good |
Basic |
Basic |
N/A |
Actual Size |
Actual Size |
Actual Size |
Actual Size |
15.5x20.5x3.75 |
Actual Size |
Actual Size |
Brand |
Accumulair |
Accumulair |
Accumulair |
Accumulair |
Accumulair |
Accumulair |
Item # |
FD16X21X4A |
FA16X21X4A |
FB16X21X4A |
FC16X21X4 |
FC16X21X4A |
FO16X21X4A |
Purchase |
$26.39Min Qty: 2 |
$22.43Min Qty: 2 |
$19.79Min Qty: 2 |
$13.19Min Qty: 2 |
$15.83Min Qty: 2 |
$25.07Min Qty: 2 |
Product Page |
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16x21x4
Air Filter
Efficiency: APR 1950
Equivalent: Merv 13
Performance: Best
Actual Size: Actual Size
Brand: Accumulair
Item # FD16X21X4A
$26.39
Min Qty: 2
Efficiency: APR 1550
Equivalent: Merv 11
Performance: Better
Actual Size: Actual Size
Brand: Accumulair
Item # FA16X21X4A
$22.43
Min Qty: 2
Efficiency: APR 650
Equivalent: Merv 8
Performance: Good
Actual Size: Actual Size
Brand: Accumulair
Item # FB16X21X4A
$19.79
Min Qty: 2
Efficiency: APR 450
Equivalent: Merv 6
Performance: Basic
Actual Size: 15.5x20.5x3.75
Brand: Accumulair
Item # FC16X21X4
$13.19
Min Qty: 2
Efficiency: APR 450
Equivalent: Merv 6
Performance: Basic
Actual Size: Actual Size
Brand: Accumulair
Item # FC16X21X4A
$15.83
Min Qty: 2