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Polly Series 4" Air Filters

You'll get cleaner air and better performance from your air conditioning or furnace heating system with our Polly series pleated filters. We now offer a wider choice of filtering efficiencies.

Our Polly series 4" filters are suitable for both residential and commercial applications. They are available in both standard and custom sizes*, and are disposable for your ultimate convenience. No hassle of having to wash out a reusable filter every month! These filters are designed to last 60 to 90 days under normal operating conditions, so you really get your money's worth!

Which To Choose?

We offer high quality air filters for every need and budget. What's your main concern? Is it providing high quality filtration for your air conditioning equipment? MERV 6 or 8 is for you. Do you what to provide the best possible protection for your system, and address indoor air quality as well? Then consider upgrading to MERV 11. We will be offering a MERV 12 option in the near future. The higher the MERV rating, the higher the filtering efficiency.

*MERV Rating: Minimum Efficiency Reporting Value. A number assigned to represent the filtering efficiency of a particular filter, from a testing method designed by the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE), to help people compare the filtering quality of filters. Usually, the higher the MERV rating, the better the filtering performance

**See size restrictions in each Polly Series section.

Polly Extra Home Air Filter

Four Inch Pleated Filters
(Priced per Filter)

Size Actual Size MERV 12 MERV 11 MERV 8 MERV 6
12 x 24 x 4 11 ½" x 23 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
14 x 25 x 4 13 ½" x 24 ½" x 3 ⅝" Coming Soon 19.00 16.00 13.00
16 x 20 x 4 15 ½" x 19 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
16 x 25 x 4 15 ½" x 24 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
18 x 24 x 4 17 ½" x 23 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
20 x 20 x 4 19 ½" x 19 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
20 x 24 x 4 19 ½" x 23 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
20 x 25 x 4 19 ½" x 24 ½" x 3 ⅝" Coming Soon 16.00 14.00 12.00
24 x 24 x 4 23 ⅜" x 23 ⅜" x 3 ⅝" Coming Soon 19.00 17.00 15.00


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12x24x4N 12x24x4 Nominal Air Filter, Pleated
Actual Dimensions 11-3/8" x 23-3/8" x 3-3/4"
Item # PF12244N; 3-Pack
$36.00
  
14x25x4 14x25x4 Air Filter, Pleated
Actual Dimensions 13-1/2" x 24-1/2" x 3-5/8"
Item # PF14254; 3-Pack
$39.00
  
16x20x4 16x20x4 Air Filter, Pleated
Actual Dimensions 15-1/2" x 19-1/2" x 3-5/8"
Item # PF16204; 3-Pack
$36.00
  
16x25x4 16x25x4 Air Filter, Pleated
Actual Dimensions 15-1/2" x 24-1/2" x 3-5/8"
Item # PF16254; 3-Pack
$36.00
  
18x24x4 18x24x4 Air Filter, Pleated
Actual dimensions 17-1/2" x 23-1/2" x 3-5/8"
Item # PF18244; 3-Pack
$36.00
  
20x24x4 20x24x4 Air Filter, Pleated
Actual Dimensions 19-3/8" x 23-3/8" x 3-3/4"
Item # PF20244; 3-Pack
$36.00
  
20x25x4 20x25x4 Air Filter, Pleated
Actual Dimensions 19-3/8" x 24-3/8" x 3-5/8"
Item # PF20254; 3-Pack
$36.00
  
24x24x4 24x24x4 Air Filter, Pleated
Actual Dimensions 23-3/4" x 23-3/4" x 3-3/4"
Item # PF24244; 3-Pack
$48.00
  
20x20x4 20x20x4 Air Filter, Pleated
Actual Dimensions 19-1/2" x 19-1/2" x 3-3/4"
Item # PF20204; 3-Pack
$39.00
  
14x24x4 14x24x4 Air Filter, Pleated
Actual Dimensions 13-1/2" x 23-1/2" x 3-5/8"
Item # PF14244; 3-Pack
$36.00
  
24x24x4N 24x24x4 Nominal Air Filter, Pleated
Actual Dimensions 23-3/8" x 23-3/8" x 3-3/4"
Item # PF24244N; 3-Pack
$48.00
  
20x20x4N 20x20x4 Nominal Air Filter, Pleated
Actual Dimensions 19-5/8 x 19-5/8 x 3-1/2
Item # PF20204N; 3-Pack
$42.00
  
12x24x4 12x24x4 Air Filter, Pleated
Actual Dimensions 11-3/4" x 23-3/4" x 3-3/4"
Item # PF12244; 3-Pack
$36.00
  
18x18x4 18x18x4 Air Filter, Pleated
Actual Dimensions 17-1/2" x 17-1/2" x 3-3/4"
Item # PF18184; 3-Pack
$39.00
  
  
14x14x4 14x14x4 Air Filter, Pleated
Actual dimensions 13-1/2" x 13-1/2" x 3-3/4";
Item # PF14144; 6-Pack
$48.00
  
12x12x4 12x12x4 Air Filter, Pleated
Actual dimensions 11-1/2" x 11-1/2" x 3-3/4";
Item # PF12124; 6-Pack
$48.00
  
12x12x4A 12x12x4 Air Filter, Pleated
Actual Size
Item # PF12124A; 6-Pack
$48.00
  
30x30x4 Pleated Filter 30x30x4
Actual Dimensions 29.5 x 29.5 x 3.75
Item # PF30304; 3-Pack
$66.00
  
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