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21x24x4.5 Ruud PD540020 Air Filter
$43.33
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Actual Size: 20.75 x 24.25 x 4.38. Accumulair brand 21x24x4.5 Ruud PD540020 compatible whole house filters, exactly constructed to replace the name brand Ruud PD540020 air filters. Completely assembled so no assembly or combs needed. MERV graded to ASHRAE standards assuring operation to the level of the name brand Ruud PD540020 air filters. Notice: The example air filter image shown is not the actual dimensions and is displayed for design purposes. Trade names and Ruud PD540020 identifier included for air filter replacement identification only.
| Quantity of Filters per Case | 2 |
|---|---|
| Efficiency Rating | MERV 8, MERV 11, MERV 13, Carbon MERV 8 |
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