21x21x5 Ruud

Air Filter Home

 21x21x4.5 Air Filter Home Ruud MERV 8 21x21x4.5 Air Filter Home Ruud MERV 11 21x21x4.5 Air Filter Home Ruud MERV 13 21x21x4.5 Air Filter Home Ruud Carbon Odor Block

Efficiency
MERV 8
MERV 11
MERV 13
Carbon Odor

Equivalent
APR 650
APR 1550
APR 1950
N/A

Performance
Good
Better
Best
N/A

Actual Size
20.75x20.75x4.38
20.75x20.75x4.38
20.75x20.75x4.38
20.75x20.75x4.38

Aftermarket Replacement For
Ruud
Ruud
Ruud
Ruud

Item #
DPFU21X21X5M8=DRU
DPFU21X21X5M11=DRU
DPFU21X21X5M13=DRU
DPFU21X21X5OB=DRU

Purchase

$40.91

Min Qty: 2
Order Options

$48.83

Min Qty: 2
Order Options

$55.43

Min Qty: 2
Order Options

$55.43

Min Qty: 2
Order Options

Product Page
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21x21x5 Ruud

Air Filter Home

21x21x4.5 Air Filter Home Ruud MERV 8
Efficiency: MERV 8
Equivalent: APR 650
Performance: Good
Actual Size: 20.75x20.75x4.38
Aftermarket Replacement For: Ruud
Item # DPFU21X21X5M8=DRU

$40.91

Min Qty: 2
Order Options
More Info »
21x21x4.5 Air Filter Home Ruud MERV 11
Efficiency: MERV 11
Equivalent: APR 1550
Performance: Better
Actual Size: 20.75x20.75x4.38
Aftermarket Replacement For: Ruud
Item # DPFU21X21X5M11=DRU

$48.83

Min Qty: 2
Order Options
More Info »
21x21x4.5 Air Filter Home Ruud MERV 13
Efficiency: MERV 13
Equivalent: APR 1950
Performance: Best
Actual Size: 20.75x20.75x4.38
Aftermarket Replacement For: Ruud
Item # DPFU21X21X5M13=DRU

$55.43

Min Qty: 2
Order Options
More Info »
21x21x4.5 Air Filter Home Ruud Carbon Odor Block
Efficiency: Carbon Odor
Equivalent: N/A
Performance: N/A
Actual Size: 20.75x20.75x4.38
Aftermarket Replacement For: Ruud
Item # DPFU21X21X5OB=DRU

$55.43

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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