4" Furnace Filters

4" replacement furnace filters are available in many standard and non-standard sizes. Simply select your size from the drop down box below to choose your filter size. Keep in mind that length and width are reversible (i.e. a 15x20x4 is the same as a 20x15x4).

 

4" replacement furnace filters are available in many standard and non-standard sizes. Simply select your size from the drop down box below to choose your filter size. Keep in mind that length and width are reversible (i.e. a 15x20x4 is the same as a 20x15x4).

 

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4" Furnace Filters

16x20x4 MERV 11 - 6 Pack Pleated Furnace Filter 16x20x4 MERV 11 - 6 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF11-41620-6
MERV Rating: 11
Case: 6
Price: $114.99

 

$89.00
4" Furnace Filters

16x20x4 MERV 11 - 3 Pack Pleated Furnace Filter 16x20x4 MERV 11 - 3 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF11-41620-3
MERV Rating: 11
Case: 3
Price: $69.99

 

$54.00
4" Furnace Filters

16x20x4 MERV 8 - 3 Pack Pleated Furnace Filter 16x20x4 MERV 8 - 3 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF8-41620-3
MERV Rating: 8
# Per Case: 3
Price per Case: $59.99

Manufactured: Canada

*Effective for dust, pollen, pet dander, bacteria and mould.
$46.00
4" Furnace Filters

16x20x4 MERV 8 - 4 Pack Pleated Furnace Filter 16x20x4 MERV 8 - 4 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF8-41620-4
MERV Rating: 8
Case: 4
Price: $74.99
* Exact Replacement for 3M Filtrete.

 

$58.00
4" Furnace Filters

16x20x4 MERV 13 - 6 Pack Pleated Furnace Filter 16x20x4 MERV 13 - 6 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF13-41620-6
MERV: 13
Per Case: 6
Price: $139.99
                                            * Exact Replacement for 3M Filtrete.

 

$106.00
4" Furnace Filters

16x20x4 MERV 13 - 4 Pack Pleated Furnace Filter 16x20x4 MERV 13 - 4 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF13-41620-4
MERV: 13
Case: 4
Price: $104.99

 

                                                  *Exact Replacement for 3M Filtrete.

$81.00
4" Furnace Filters

16x20x4 MERV 11 - 4 Pack Pleated Furnace Filter 16x20x4 MERV 11 - 4 Pack Pleated Furnace Filter

Nominal Size : 16x20x4
Actual Size : 15-1/2 x 19-1/2 x 3-3/4
Part #: UF11-41620-4
MERV Rating: 11
Case: 4
Price: $79.99

 

$62.00