MERV 4, Polyester Air Filter

Brookaire's polyester MERV 4 air filters are built with a sturdy single-piece craft board frame. Our pinch frame design for 1" filters provide rigid construction that increases the life of the filter. The corners are sealed to ensure no air bypass through the frame. Polyester MERV 4 air filters air available in 1" and 2" depths, and provide an economical alternative to pleated filter styles. Poly filters are commonly used in residential HVAC systems, and in HVAC systems that do not have the airflow capacity to use a pleated filter.


Can't find your size? Custom sizes air filters are available - contact us today sales@brookaire.com

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Product Name: 10 x 10 x 1 MERV 4 Polyester Filter

S-PYM4-10101

SKU: S-PYM4-10101Actual Width: 9.75Actual Length: 9.75
Quantity:Unit Price: $3.30Total Price:  

Product Name: 10 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-10201

SKU: S-PYM4-10201Actual Width: 9.75Actual Length: 19.75
Quantity:Unit Price: $3.84Total Price:  

Product Name: 10 x 30 x 1/2 MERV 4 Polyester Filter

S-PYM4-1030.5

SKU: S-PYM4-1030.5Actual Width: Actual Length:
Quantity:Unit Price: $7.46Total Price:  

Product Name: 10 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-10301

SKU: S-PYM4-10301Actual Width: 9.875Actual Length: 29.875
Quantity:Unit Price: $6.29Total Price:  

Product Name: 12 x 12 x 1 MERV 4 Polyester Filter

S-PYM4-12121

SKU: S-PYM4-12121Actual Width: 11.75Actual Length: 11.75
Quantity:Unit Price: $3.56Total Price:  

Product Name: 12 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-12201

SKU: S-PYM4-12201Actual Width: 11.75Actual Length: 19.75
Quantity:Unit Price: $4.07Total Price:  

Product Name: 12 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-12241

SKU: S-PYM4-12241Actual Width: 11.75Actual Length: 23.75
Quantity:Unit Price: $5.39Total Price:  

Product Name: 12 x 24 x 2 MERV 4 Polyester Filter

S-PYM4-12242

SKU: S-PYM4-12242Actual Width: 11.5Actual Length: 23.5
Quantity:Unit Price: $5.53Total Price:  

Product Name: 12 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-12251

SKU: S-PYM4-12251Actual Width: 11.75Actual Length: 24.75
Quantity:Unit Price: $5.12Total Price:  

Product Name: 12 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-12301

SKU: S-PYM4-12301Actual Width: 11.875Actual Length: 29.875
Quantity:Unit Price: $4.93Total Price:  

Product Name: 14 x 14 x 1 MERV 4 Polyester Filter

S-PYM4-14141

SKU: S-PYM4-14141Actual Width: 13.75Actual Length: 13.75
Quantity:Unit Price: $3.78Total Price:  

Product Name: 14 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-14201

SKU: S-PYM4-14201Actual Width: 13.75Actual Length: 19.75
Quantity:Unit Price: $4.59Total Price:  

Product Name: 14 x 20 x 2 MERV 4 Polyester Filter

S-PYM4-14202

SKU: S-PYM4-14202Actual Width: 13.5Actual Length: 19.5
Quantity:Unit Price: $5.64Total Price:  

Product Name: 14 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-14241

SKU: S-PYM4-14241Actual Width: 13.75Actual Length: 23.75
Quantity:Unit Price: $4.49Total Price:  

Product Name: 14 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-14251

SKU: S-PYM4-14251Actual Width: 13.75Actual Length: 24.75
Quantity:Unit Price: $5.19Total Price:  

Product Name: 14 x 25 x 2 MERV 4 Polyester Filter

S-PYM4-14252

SKU: S-PYM4-14252Actual Width: 13.5Actual Length: 24.5
Quantity:Unit Price: $6.24Total Price:  

Product Name: 14 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-14301

SKU: S-PYM4-14301Actual Width: 13.75Actual Length: 29.75
Quantity:Unit Price: $5.16Total Price:  

Product Name: 15 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-15201

SKU: S-PYM4-15201Actual Width: 14.75Actual Length: 19.75
Quantity:Unit Price: $4.38Total Price:  

Product Name: 15 x 20 x 2 MERV 4 Polyester Filter

S-PYM4-15202

SKU: S-PYM4-15202Actual Width: 14.5Actual Length: 19.5
Quantity:Unit Price: $5.73Total Price:  

Product Name: 15 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-15301

SKU: S-PYM4-15301Actual Width: 14.75Actual Length: 29.75
Quantity:Unit Price: $6.51Total Price:  

Product Name: 16 x 16 x 1 MERV 4 Polyester Filter

S-PYM4-16161

SKU: S-PYM4-16161Actual Width: 15.75Actual Length: 15.75
Quantity:Unit Price: $4.76Total Price:  

Product Name: 16 x 16 x 2 MERV 4 Polyester Filter

S-PYM4-16162

SKU: S-PYM4-16162Actual Width: 15.5Actual Length: 15.5
Quantity:Unit Price: $6.00Total Price:  

Product Name: 16 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-16201

SKU: S-PYM4-16201Actual Width: 15.75Actual Length: 19.75
Quantity:Unit Price: $4.99Total Price:  

Product Name: 16 x 20 x 2 MERV 4 Polyester Filter

S-PYM4-16202

SKU: S-PYM4-16202Actual Width: 15.5Actual Length: 19.5
Quantity:Unit Price: $5.91Total Price:  

Product Name: 16 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-16241

SKU: S-PYM4-16241Actual Width: 15.75Actual Length: 23.75
Quantity:Unit Price: $5.04Total Price:  

Product Name: 16 x 24 x 2 MERV 4 Polyester Filter

S-PYM4-16242

SKU: S-PYM4-16242Actual Width: 15.5Actual Length: 23.5
Quantity:Unit Price: $6.49Total Price:  

Product Name: 16 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-16251

SKU: S-PYM4-16251Actual Width: 15.75Actual Length: 24.75
Quantity:Unit Price: $5.52Total Price:  

Product Name: 16 x 25 x 2 MERV 4 Polyester Filter

S-PYM4-16252

SKU: S-PYM4-16252Actual Width: 15.5Actual Length: 24.5
Quantity:Unit Price: $6.51Total Price:  

Product Name: 16 x 30 x 1/2 MERV 4 Polyester Filter

S-PYM4-1630.5

SKU: S-PYM4-1630.5Actual Width: Actual Length:
Quantity:Unit Price: $8.18Total Price:  

Product Name: 16 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-16301

SKU: S-PYM4-16301Actual Width: Actual Length:
Quantity:Unit Price: $6.29Total Price:  

Product Name: 18 x 18 x 1 MERV 4 Polyester Filter

S-PYM4-18181

SKU: S-PYM4-18181Actual Width: 17.75Actual Length: 17.75
Quantity:Unit Price: $4.54Total Price:  

Product Name: 18 x 18 x 2 MERV 4 Polyester Filter

S-PYM4-18182

SKU: S-PYM4-18182Actual Width: 17.5Actual Length: 17.5
Quantity:Unit Price: $4.70Total Price:  

Product Name: 18 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-18201

SKU: S-PYM4-18201Actual Width: 17.75Actual Length: 19.75
Quantity:Unit Price: $5.16Total Price:  

Product Name: 18 x 20 x 2 MERV 4 Polyester Filter

S-PYM4-18202

SKU: S-PYM4-18202Actual Width: 17.5Actual Length: 19.5
Quantity:Unit Price: $6.72Total Price:  

Product Name: 18 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-18241

SKU: S-PYM4-18241Actual Width: 17.75Actual Length: 23.75
Quantity:Unit Price: $5.53Total Price:  

Product Name: 18 x 24 x 2 MERV 4 Polyester Filter

S-PYM4-18242

SKU: S-PYM4-18242Actual Width: 17.5Actual Length: 23.5
Quantity:Unit Price: $6.42Total Price:  

Product Name: 18 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-18251

SKU: S-PYM4-18251Actual Width: 17.75Actual Length: 24.75
Quantity:Unit Price: $5.48Total Price:  

Product Name: 18 x 25 x 2 MERV 4 Polyester Filter

S-PYM4-18252

SKU: S-PYM4-18252Actual Width: 17.5Actual Length: 24.5
Quantity:Unit Price: $6.42Total Price:  

Product Name: 18 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-18301

SKU: S-PYM4-18301Actual Width: Actual Length:
Quantity:Unit Price: $7.30Total Price:  

Product Name: 20 x 20 x 1/2 MERV 4 Polyester Filter

S-PYM4-2020.5

SKU: S-PYM4-2020.5Actual Width: Actual Length:
Quantity:Unit Price: $7.30Total Price:  

Product Name: 20 x 20 x 1 MERV 4 Polyester Filter

S-PYM4-20201

SKU: S-PYM4-20201Actual Width: 19.75Actual Length: 19.75
Quantity:Unit Price: $5.48Total Price:  

Product Name: 20 x 20 x 2 MERV 4 Polyester Filter

S-PYM4-20202

SKU: S-PYM4-20202Actual Width: 19.5Actual Length: 19.5
Quantity:Unit Price: $6.76Total Price:  

Product Name: 20 x 22 x 1 MERV 4 Polyester Filter

S-PYM4-20221

SKU: S-PYM4-20221Actual Width: 19.875Actual Length: 21.875
Quantity:Unit Price: $6.29Total Price:  

Product Name: 20 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-20241

SKU: S-PYM4-20241Actual Width: 19.75Actual Length: 23.75
Quantity:Unit Price: $6.04Total Price:  

Product Name: 20 x 24 x 2 MERV 4 Polyester Filter

S-PYM4-20242

SKU: S-PYM4-20242Actual Width: 19.5Actual Length: 23.5
Quantity:Unit Price: $6.79Total Price:  

Product Name: 20 x 25 x 1/2 MERV 4 Polyester Filter

S-PYM4-2025.5

SKU: S-PYM4-2025.5Actual Width: Actual Length:
Quantity:Unit Price: $8.80Total Price:  

Product Name: 20 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-20251

SKU: S-PYM4-20251Actual Width: 19.75Actual Length: 24.75
Quantity:Unit Price: $6.17Total Price:  

Product Name: 20 x 25 x 2 MERV 4 Polyester Filter

S-PYM4-20252

SKU: S-PYM4-20252Actual Width: 19.5Actual Length: 24.5
Quantity:Unit Price: $7.21Total Price:  

Product Name: 20 x 30 x 1/2 MERV 4 Polyester Filter

S-PYM4-2030.5

SKU: S-PYM4-2030.5Actual Width: Actual Length:
Quantity:Unit Price: $7.68Total Price:  

Product Name: 20 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-20301

SKU: S-PYM4-20301Actual Width: 19.75Actual Length: 29.75
Quantity:Unit Price: $5.75Total Price:  

Product Name: 20 x 30 x 2 MERV 4 Polyester Filter

S-PYM4-20302

SKU: S-PYM4-20302Actual Width: 19.5Actual Length: 29.5
Quantity:Unit Price: $12.48Total Price:  

Product Name: 22 x 22 x 1 MERV 4 Polyester Filter

S-PYM4-22221

SKU: S-PYM4-22221Actual Width: 21.75Actual Length: 21.75
Quantity:Unit Price: $6.62Total Price:  

Product Name: 24 x 24 x 1 MERV 4 Polyester Filter

S-PYM4-24241

SKU: S-PYM4-24241Actual Width: 23.75Actual Length: 23.75
Quantity:Unit Price: $7.73Total Price:  

Product Name: 24 x 24 x 2 MERV 4 Polyester Filter

S-PYM4-24242

SKU: S-PYM4-24242Actual Width: 23.5Actual Length: 23.5
Quantity:Unit Price: $8.06Total Price:  

Product Name: 24 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-24301

SKU: S-PYM4-24301Actual Width: 23.75Actual Length: 29.75
Quantity:Unit Price: $6.81Total Price:  

Product Name: 24 x 30 x 2 MERV 4 Polyester Filter

S-PYM4-24302

SKU: S-PYM4-24302Actual Width: Actual Length:
Quantity:Unit Price: $13.06Total Price:  

Product Name: 25 x 25 x 1 MERV 4 Polyester Filter

S-PYM4-25251

SKU: S-PYM4-25251Actual Width: 24.75Actual Length: 24.75
Quantity:Unit Price: $7.49Total Price:  

Product Name: 25 x 25 x 2 MERV 4 Polyester Filter

SO-PYM4-25252

SKU: SO-PYM4-25252Actual Width: Actual Length:
Quantity:Unit Price: $10.88Total Price:  

Product Name: 8 x 30 x 1 MERV 4 Polyester Filter

S-PYM4-08301

SKU: S-PYM4-08301Actual Width: Actual Length:
Quantity:Unit Price: $6.00Total Price:  

Product Name: 9 x 30 x 1 MERV 4 Polyester Filter

SO-PYM4-09301

SKU: SO-PYM4-09301Actual Width: Actual Length:
Quantity:Unit Price: $6.46Total Price:  
Product NameSKUActual WidthActual LengthOptionsQuantityUnit PriceTotal Price
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