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20x25x4 Air Filters

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AIR FILTER
AIR FILTER Definition: A filter that prevents dirt and debris from air entering the engine. < Back to Last Page >     < Full Glossa
Buying Guide - http://autorepair.about.com/library/glossary/bldef-005a.htm
Dummies::Checking Your Car's Air Filter
Replacing these filters is easy: You simply buy a new one for your vehicle's make, model, and year, lift out the old one, and drop in the new one. A few older vehicles have permanent air filters.
Buying Guide - http://www.dummies.com/WileyCDA/DummiesArticle/id-423,subcat-HOME.html
DIY: How to Replace Your Air Filter
To see if your air filter needs to be replaced, shine a flash light from the inside out. Be careful that no dirt or debris falls into the carburetor. Clean the inside of the air.
Buying Guide - http://autorepair.about.com/od/doityourself/ht/bl_air_filter.htm
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  1. Smart Filter OB20254 NA OdorBan Merv 8 OdorBan 20x25x4 Air Filter (Package of 6)

    Smart Filter OB20254 NA OdorBan Merv 8 OdorBan 20x25x4 Air Filter (Package of 6)

    OdorBan MERV-8 Air Filter Six PackOdorBan filters are MERV 8 rated according to ASHRAE 52.2 standards. OdorBan filters utilize two stage filtration technology to remove odors, irritant gases, particulates and dust in some of the most challenging envi
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    In Stock

    $113.61
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    at Venting Direct
  2. MERV 8 20" x 25" x 4" Air Filters (6 Pack)

    MERV 8 20" x 25" x 4" Air Filters (6 Pack)

    MERV 8 20x25x4 Air Filter Overview Actual dimensions of the filter are 19.625" x 24.625" x 3.5" Listed and rated by UL (Underwriters Laboratory) 18 months supply (each filter lasts 3 months) Long-lasting value package - 6 filters per case Ships within 1-2 business days The MERV8 20x25x4 furnace & air conditioner filter will remove the following contaminants: Lint & Dust Dust Mite Debris Pollen Mold Spores Pet Dander
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    In Stock

    $99.99
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    at All Filters
    Trusted Merchant
  3. Smart Filter DQP4020254 NA DQP High Capacity Merv 8 20x25x4 Air Filter (Package

    Smart Filter DQP4020254 NA DQP High Capacity Merv 8 20x25x4 Air Filter (Package

    High Capacity MERV-8 Air Filter Six PackDQP 40 filters are MERV 8 rated according to according to ASHRAE 52.2 standards and 40% to 45% efficient according to ASHRAE 52.1 standards. DQP 40 filters are made with electrostatically charged synthetic medi
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    In Stock

    $51.68
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    at Venting Direct
  4. AIR HANDLER 2W237 20x25x4,pleated Air Filter,merv 7

    AIR HANDLER 2W237 20x25x4,pleated Air Filter,merv 7

    Pleated Filter, Standard Capacity, Merv 7, Nominal Height 20 In., Nominal Width 25 In., Nominal Depth 4 In.

    In Stock

    $16.76
    See It
    at Grainger
  5. MERV 11 20" x 25" x 4" Air Filters (6 Pack)

    MERV 11 20" x 25" x 4" Air Filters (6 Pack)

    MERV 11 20x25x4 Air Filter Overview Actual dimensions of the filter are 19.625" x 24.625" x 3.5" Listed and rated by UL (Underwriters Laboratory) 18 months supply (each filter lasts 3 months) Long-lasting value package - 6 filters per case Ships within 1-2 business days The MERV11 20x25x4 furnace & air conditioner filter will remove the following contaminants: Lint & Dust Dust Mite Debris Pollen Mold Spores Pet Dander Auto Emissions Smoke
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    In Stock

    $114.99
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    at All Filters
    Trusted Merchant
  6. Smart Filter EQP4020254 NA EQP Standard Capacity Merv 8 20x25x4 Air Filter (Pack

    Smart Filter EQP4020254 NA EQP Standard Capacity Merv 8 20x25x4 Air Filter (Pack

    Standard Capacity MERV-8 Air Filter Six PackEQP 40 filters are MERV 8 rated according to according to ASHRAE 52.2 standards and 40% to 45% efficient according to ASHRAE 52.1 standards. EQP 40 filters are made with electrostatically charged synthetic
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    In Stock

    $41.55
    See It
    at Venting Direct
  7. MERV 13 20" x 25" x 4" Air Filters (6 Pack)

    MERV 13 20" x 25" x 4" Air Filters (6 Pack)

    MERV 13 20x25x4 Air Filter Overview Actual dimensions of the filter are 19.625" x 24.625" x 3.5" Listed and rated by UL (Underwriters Laboratory) 18 months supply (each filter lasts 3 months) Long-lasting value package - 6 filters per case Ships within 1-2 business days The MERV13 20x25x4 furnace & air conditioner filter will remove the following contaminants: Lint & Dust Dust Mite Debris Pollen Mold Spores Pet Dander Auto Emissions Smoke Tobacco Bacteria
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    In Stock

    $149.99
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    at All Filters
    Trusted Merchant
  8. 20x25x4-3/8 Air Demon Filter

    20x25x4-3/8 Air Demon Filter

    MERV 11, Attracts dust & pollen like a magnet, Captures mold spores, pet dander & bacteria. Filter is made with 100% synthetic, electrostatic media.

    In Stock

    $28.99
    See It
    at RememberTheFilter.com
  9. AIR HANDLER 6B929 20x25x4,pleated Air Filter,merv 8

    AIR HANDLER 6B929 20x25x4,pleated Air Filter,merv 8

    Pleated Filter, High Capacity, Merv 8, Nominal Height 20 In., Nominal Width 25 In., Nominal Depth 4 In.

    In Stock

    $24.19
    See It
    at Grainger
  10. Pre Pleat M13 High Capacity 20x25x4 Pleated Panel MERV 13 Air Filter

    Pre Pleat M13 High Capacity 20x25x4 Pleated Panel MERV 13 Air Filter

    Flanders Pre Pleat M13 High Capacity 20x25x4 Pleated Panel MERV 13 Air Filter (Qty: 6) Flanders Pre Pleat M13 High Capacity Pleated Panel Air Filter Description Pre Pleat M13 pleated panel filters are suitable as pre filters but are best suited for heavy duty commercial, industrial, and pharmaceutical applications. The Pre Pleat M13 can be installed in PF-1 Holding Frames, K-Trac Framing Modules, Surepleat Side Access Housings and Bag-In/Bag-Out Containment housings. Flanders Pre Pleat M13 High Capacity ...
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    In Stock

    $92.95
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    at eComfort.com
    Trusted Merchant
  11. AIR HANDLER 4YUZ7 20x25x4,pleated Air Filter,merv 10

    AIR HANDLER 4YUZ7 20x25x4,pleated Air Filter,merv 10

    Pleated Filter, High Capacity, Merv 10, Nominal Height 20 In., Nominal Width 25 In., Nominal Depth 4 In.

    In Stock

    $28.25
    See It
    at Grainger
  12. On Sale - 23% Discount on Exact Match FO20X25X4 20 X 25 X 4 Carbon Pleated FilterExact Match FO20X25X4 20 X 25 X 4 Carbon Pleated Filter

    Exact Match FO20X25X4 20 X 25 X 4 Carbon Pleated Filter

    20 X 25 X 4 Carbon Pleated Filter Actual Dimensions - 19-1/2" X 24-1/2" X 3-3/4" NOTE: This filter will not fit media filter cabinets (Honeywell, Trion Air Bear, Bryant/Carrier) that require 4-3/8" or 5" thick filters - please measure your exist
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    In Stock

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    $91.95
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    at discountfilters.com
  13. Smart Filter BRUTUS20254 Green Brutus Brutus Merv 8 20x25x4 Mechanical Filter (P

    Smart Filter BRUTUS20254 Green Brutus Brutus Merv 8 20x25x4 Mechanical Filter (P

    20x25x4 Brutus Merv 8 Mechanical Filter Six Pack from the Brutus CollectionBRUTUS MERV 8 Mechanical filters from Smart Filter, are born tough. The expanded metal reinforced media holds steady under heavy dust loading. The moisture proof frame stands
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    In Stock

    $35.79
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    at Venting Direct
  14. AIR HANDLER 2DYH6 20x25x4,pleated Air Filter,merv 11

    AIR HANDLER 2DYH6 20x25x4,pleated Air Filter,merv 11

    Pleated Filter, High Capacity, Merv 11, Nominal Height 20 In., Nominal Width 25 In., Nominal Depth 4 In.

    In Stock

    $29.55
    See It
    at Grainger
  15. 20x25x5 (20x24.75x5.25) Honeywell Popup Media Air Filter

    20x25x5 (20x24.75x5.25) Honeywell Popup Media Air Filter

    Honeywell model air filter #F25, F35, F100, F150 and F200. Nominal size is 20 x 25 x 5. Actual size is 20 x 24 3/4 x 5 1/4. Collapsible design: Less chance of damage to filter and can store up to five filters in the same space used to store just one.
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    In Stock

    $33.50
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    at Filters-NOW
  16. 20x25x4.5 MERV 11 Air Cleaner Refill (Qty: 2)

    20x25x4.5 MERV 11 Air Cleaner Refill (Qty: 2)

    Flanders 20x25x4.5 MERV 11 Air Cleaner Refill (Qty: 2) Flanders Air Cleaner Refill Description Flanders 20x25x4.5 MERV 11 Air Cleaner Refill (Qty: 2) is a replacement filter designed to fit Honeywell Systems. Flanders Air Cleaner Refill Filter Physical and Efficiency Data: MERV Rating : MERV 11 Designed for : Honeywell Systems Flanders Air Cleaner Refill Warranty: Flanders Filter Model 82755.
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    In Stock

    $52.00 - $128.09
    Compare Prices
    at 3 stores
  17. Smart Filter GQP20254 Green GQP GQP Merv 13 20x25x4 Green Quality Filter (Packag

    Smart Filter GQP20254 Green GQP GQP Merv 13 20x25x4 Green Quality Filter (Packag

    20x25x4 GQP Merv 13 Green Quality Filter Six Pack from the GQP CollectionGQP "Green" Quality Pleats are ideally suited for the Green Building Council s latest LEED MERV 13 Indoor Air Quality requirements for occupant health. GQP s, as well as our Qua
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    In Stock

    $115.93
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    at Venting Direct
  18. On Sale - 23% Discount on IAQ DPFR20X25X5OB 20" x 25" x 5" Carbon Air Bear Filter ReplacementIAQ DPFR20X25X5OB 20" x 25" x 5" Carbon Air Bear Filter Replacement

    IAQ DPFR20X25X5OB 20" x 25" x 5" Carbon Air Bear Filter Replacement

    20" x 25" x 5" Carbon Air Bear Filter Replacement (actual size 19 3/4" x 24 1/4" x 4 7/8" - 2-Pack). This well made filter slides right in your Air Bear air cleaner cabinet and traps noxious gases and odors from cigars, cigarettes, cooking, and p
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    In Stock

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    $79.95
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    at discountfilters.com
  19. 20x25x4 (19.94x24.63x4.31) Filtrete Allergen Reduction Filter

    20x25x4 (19.94x24.63x4.31) Filtrete Allergen Reduction Filter

    Filtrete 1550 Allergen Reduction Filter. Designed for Honeywell 20x25 air cleaners. 1750 Performance Rating. Designed for housings that accommodate 4 inch nominal size filters. Captures 97% of large airborne allergens, such as pollen, mold spores and
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    In Stock

    $34.99
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    at Filters-NOW
  20. 20" x 25" x 4" MERV 8 Odor Eliminator Air Filters (6 Pack)

    20" x 25" x 4" MERV 8 Odor Eliminator Air Filters (6 Pack)

    MERV 8 20x25x4 Carbon Pleated Odor Eliminator Filter Overview Actual dimensions of the filter are 19.625" x 24.625" x 3.5" Efficiently eliminates common household odors and irritants without reducing air flow Fits into existing filter housing space, providing odor and fume control without costly re-fitting Utilizes gray carbon filter media to maximize surface area 10,000 times more surface area than a traditional granulated carbon filter! 18 month supply (each filter lasts 3 months) Long-lasting value package ...
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    In Stock

    $144.99
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    at All Filters
    Trusted Merchant
  21. 20x25x4.5 MERV 8 Air Cleaner Refill (Qty: 2)

    20x25x4.5 MERV 8 Air Cleaner Refill (Qty: 2)

    Flanders 20x25x4.5 MERV 8 Air Cleaner Refill (Qty: 2) Flanders Air Cleaner Refill Description Flanders 20x25x4.5 MERV 8 Air Cleaner Refill (Qty: 2) is a replacement filter designed to fit Honeywell Systems. Flanders Air Cleaner Refill Filter Physical and Efficiency Data: MERV Rating : MERV 8 Designed for : Honeywell Systems Flanders Air Cleaner Refill Warranty: Flanders Filter Model 82655.
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    In Stock

    $44.95
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    at eComfort.com
    Trusted Merchant
  22. Hi-E 40 20x25x4

    Hi-E 40 20x25x4

    Standard Capacity Pleated Filter Purolator Hi-E 40 is a medium efficiency, extended surface pleated air filter. The Hi-E 40 filter elements are enclosed in a two piece heavy duty, high wet strength beverage board frame. The media is a lofted, non-woven pleated filter media composed of non-dyed, natural cotton and synthetic fibers makes up the Hi-E40 media. When tested in accordance with ASHRAE testing method 52.1-1992, this fiber blend provides a 25-30% average efficiency and a 90-93% average arrestance and ...
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    In Stock

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    $7.50
    See It
    at Global Industrial
  23. Flanders Corporation 20 in. x 25 in. x 4 in. Prepleat MERV 6 Pleated Air Filter,

    Flanders Corporation 20 in. x 25 in. x 4 in. Prepleat MERV 6 Pleated Air Filter,

    Shop for Building Materials at The Home Depot. Flanders NaturalAire PrePleat MERV 6 utilizes the latest technology in fine mesh activated carbon. It is formulated to increase the attraction and capture of pet and human odors, as well as other common
    Read More

    See prices for: Flanders Corporation 20 in. x 25 in. x 4 in. Prepleat MERV 6 Pleated Air Filter,

    In Stock

    $149.88
    See It
    at Home Depot
    Trusted Merchant
  24. 20x25x4 (19.5x24.5x3.75) Carbon White-Rodgers Filter

    20x25x4 (19.5x24.5x3.75) Carbon White-Rodgers Filter

    This White-Rodgers filter (Part # FR2000M-108 and FR2000M-111) has a nominal size of 20" x 25" x 4", and an actual size of 19 1/2" x 24 1/2" x 3 3/4". It features carbon impregnated disposable pleated panel filters. A si
    Read More

    In Stock

    $23.99
    See It
    at Filters-NOW
  25. Pre Pleat 40 High Capacity 20x25x4 Pleated Panel MERV 8 Air Filter

    Pre Pleat 40 High Capacity 20x25x4 Pleated Panel MERV 8 Air Filter

    Flanders Pre Pleat 40 High Capacity 20x25x4 Pleated Panel MERV 8 Air Filter (Qty: 6) Flanders Pre Pleat 40 High Capacity Pleated Panel Air Filter Description The MERV 8 Pre Pleat 40 filter features a filtering medium that is more efficient and ecologically friendly. Made from recyclable materials, this medium achieves MERV 8 efficiency with low resistance to airflow. It is also unaffected by high humidity and is hydrophobic (non-moisture absorbing). Flanders Pleated Panel MERV 8 Air Filter Construction Filter ...
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    In Stock

    $84.95
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    at eComfort.com
    Trusted Merchant
  26. On Sale - 23% Discount on IAQ M11-20X25X4 20" X 25" X 4" MERV 11 Pleated FilterIAQ M11-20X25X4 20" X 25" X 4" MERV 11 Pleated Filter

    IAQ M11-20X25X4 20" X 25" X 4" MERV 11 Pleated Filter

    20" X 25" X 4" MERV 11 Pleated Filter Actual Dimensions - 19-1/2" X 24-1/2" X 3-3/4" NOTE: This filter will not fit media filter cabinets (Honeywell, Trion Air Bear, Bryant/Carrier) that require 4-3/8" or 5" thick filters - please measure your
    Read More

    In Stock

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    $101.95
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    at discountfilters.com
  27. Filtrete 1550 Allergen Reduction Filter - 20x25x4 (4-Pack)

    Filtrete 1550 Allergen Reduction Filter - 20x25x4 (4-Pack)

    If you've got a whole house air filtration system, then you're probably having a heck of a time finding replacement filters. And when you do find them, they'll probably cost you an arm and a leg! Whether your system is made by Aprilaire, Honeywell, Trion, or any other brand... Filtrete has a high-performance replacement filter designed to improve system performance at a fraction of the price!. Compatible with the following: DP03DC-4
    Read More

    $2.99 Shipping Over $50

    In Stock

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    $107.99
    See It
    at DiscountFilterStore
  28. On Sale - 14% Discount on Filtrete 1550 4 Allergen Reduction Filter - 20x25x4Filtrete 1550 4 Allergen Reduction Filter - 20x25x4

    Filtrete 1550 4 Allergen Reduction Filter - 20x25x4

    If you've got a whole house air filtration system, then you're probably having a heck of a time finding replacement filters. And when you do find them, they'll probably cost you an arm and a leg! Whether your system is made by Aprilaire, Honeywell, Trion, or any other brand... Filtrete has a high-performance replacement filter designed to improve system performance at a fraction of the price!. Compatible with the following: Aprilaire / Space-Guard 2200, 2250 Honeywell F25, F35, F100, F150, F200 Trion Air Bear ...
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    In Stock

    $64.95 - $69.95
    Compare Prices
    at 2 stores
  29. 20x25x4 (19.5 x 24.5 x 3.75) Accumulair Diamond 4-Inch Filter (MERV 13)

    20x25x4 (19.5 x 24.5 x 3.75) Accumulair Diamond 4-Inch Filter (MERV 13)

    This filter is 20x25x4 with an actual size of 19.5x24.5x3.75. The all new Accumulair Diamond with it's MERV 13 rating is the highest efficiency Accumulair filter on the market! Efficiency designed to meet the air filtration efficiency criteria requir
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    In Stock

    $18.99
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    at Filters-NOW
  30. IAQ M13-20X25X4 20" X 25" X 4" MERV 13 Pleated Filter

    IAQ M13-20X25X4 20" X 25" X 4" MERV 13 Pleated Filter

    20" X 25" X 4" MERV 13 Pleated Filter Actual Dimensions - 19-1/2" X 24-1/2" X 3-3/4" NOTE: This filter will not fit media filter cabinets (Honeywell, Trion Air Bear, Bryant/Carrier) that require 4-3/8" or 5" thick filters - please measure your
    Read More

    In Stock

    See item
    $126.25
    See It
    at discountfilters.com
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