
PA639 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.95 | Condition is New, Air Filter 29152, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017 Ridgeline, FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2022, 2021, 2020, 2019, 2018, 2017, 2016 Honda Pilot 3.5L, FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2025, 2024, 2023, 2022, 2021, 2020, 2019 Honda Passport 3.5, FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2024, 2023, 2022, 2021, 2020, 2019, 2018 Honda Odyssey 3.5L, FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2025, 2024, 2023, 2022, 2021 Acura TLX 2.0L 4Cyl Engine , FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2020, 2019, 2018, 2017, 2016 Acura MDX 3.5L 6Cyl Engine , FREE SHIPPING | 100.0% |
![]() | $11.95 | Condition is New, Air Filter 29152 For 2020, 2019, 2018, 2017 Acura MDX 3.0L 6Cyl Hybrid , FREE SHIPPING | 100.0% |
![]() | $62.05 | Top Pick! Condition is New, Baldwin Filters Pa639 Air Filter, 10-1/2 X 10-1/2 In., shipping cost = $5.00 | 99.8% |
![]() | $70.00 | Condition is New, PA639 AF303 5M4118 NEW BALDWIN AIR ELEMENT FITS CATERPILLAR FREE SHIPPING!, FREE SHIPPING | 99.8% |
![]() | $70.47 | Top Pick! Condition is New, PA639 AF303 5M4118 NEW BALDWIN AIR ELEMENT FITS CATERPILLAR FREE SHIPPING!, FREE SHIPPING | 99.5% |
![]() | $68.88 | Condition is New, BALDWIN FILTERS PA639 Air Filter Round 4XAD3, shipping cost = $6.99 | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.80 | Condition is Neu, C 2631 Mann filter air filter for Hyundai, Kia, shipping cost = $35.35 | 99.2% |
![]() | $8.32 | Condition is Neu, Maxgear 26-0573 Air Filter for Hyundai, Kia, shipping cost = $44.20 | 99.0% |
![]() | $7.44 | Condition is Neu, 26-0573 MAXGEAR Air Filter for HYUNDAI,KIA, shipping cost = $117.86 | 99.9% |
![]() | $16.44 | Top Pick! Condition is Neu, Maxgear 26-0573 Air Filter for Hyundai Kia, shipping cost = $234.56 | 99.5% |
![]() | $24.67 | Condition is Neu, MANN FILTER C 2631 AIR FILTER FOR HYUNDAI KIA, shipping cost = $234.56 | 99.5% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $58.45 | Condition is New other (see details), Carquest 87787 Air Filter Replaces BALDWIN PA639, Wix 42787, P119596, FREE SHIPPING | 99.9% |

The Baldwin Filters PA639 air filter is a round, 4-inch by 4-inch pleated filter designed to deliver superior air filtration performance for various industrial and commercial applications. This filter is a part of Baldwin Filters' PA Series, which is renowned for its high-performance media and robust construction.
The PA639 air filter boasts a deep pleat design that increases the filter's surface area, allowing it to trap more contaminants like dust, dirt, and other airborne particles. Its pleats are made of a high-efficiency media, which has a MERV (Minimum Efficiency Reporting Value) rating of 11, ensuring it can effectively capture particles as small as 1.0 microns.
The filter's frame is made of a sturdy, galvannealed steel material, which provides excellent rigidity and resistance to corrosion. The filter's gasket is made of a high-quality, flexible material that ensures a tight seal, preventing air bypass and maintaining optimal filtration efficiency.
The PA639 air filter's design also includes a convenient, easy-to-access, and snap-on/off design, making it simple to replace when it's time for a new filter. Additionally, its low-pressure drop design ensures minimal resistance to airflow, which can help improve system efficiency and reduce energy costs.
In summary, the Baldwin Filters PA639 air filter is a high-performance, round, 4-inch by 4-inch pleated filter with a deep pleat design, high-efficiency media, and a sturdy, corrosion-resistant frame. Its easy-to-access design, low-pressure drop, and MERV 11 rating make it an excellent choice for industrial and commercial applications where clean, high-quality air is essential.
Pros and Cons of Buying Baldwin Filters PA639 Air Filter (Round 4xAD3)
Introduction:The Baldwin Filters PA639 air filter is a round, 4-inch by 4-inch by 1-inch pleated filter designed to improve indoor air quality. Like any other product, it has its advantages and disadvantages. In this analysis, we will explore both the pros and cons of purchasing a Baldwin Filters PA639 air filter.
Pros:1. Efficient Filtration: This filter is MERV (Minimum Efficiency Reporting Value) 8 rated, which means it is effective at capturing large particles, such as pollen, dust mites, and pet dander. It also offers some level of protection against smaller particles, like smoke and bacteria.
2. Long Lasting: The Baldwin Filters PA639 air filter has a pleated design, which provides a larger filtering surface area compared to traditional flat filters. This results in a longer filter life, typically lasting up to three months under normal usage conditions.
3. Cost-Effective: The long filter life makes it a cost-effective solution for maintaining good indoor air quality. Additionally, the filter is relatively inexpensive, making it an affordable option for homeowners and businesses.
4. Easy to Install: The round shape and standard size of the Baldwin Filters PA639 air filter make it compatible with a wide range of HVAC systems. Installation is typically a straightforward process that can be completed by homeowners or HVAC professionals.
Cons:1. Not Effective Against Very Small Particles: While the MERV 8 rating offers good protection against larger particles, it may not be effective against very small particles, such as smoke from cooking or tobacco. For these cases, a higher MERV-rated filter may be required.
2. Airflow Restriction: The pleated design and increased filtering surface area can potentially restrict airflow in some HVAC systems. This could lead to increased energy usage and potential damage to the system if not addressed.
3. Requires Regular Replacement: Although the filter has a longer lifespan compared to flat filters, it still needs to be replaced regularly. Failure to do so can lead to decreased indoor air quality and potential damage to the HVAC system.
Conclusion:The Baldwin Filters PA639 air filter offers efficient filtration, a long lifespan, cost-effectiveness, and ease of installation. However, it may not be effective against very small particles and could potentially restrict airflow in some HVAC systems. Ultimately, the decision to purchase this filter depends on the specific needs and preferences of the homeowner or business.
Recommendation:If you are looking for an affordable, cost-effective air filter that offers good protection against larger particles, the Baldwin Filters PA639 air filter is an excellent choice. However, if you require protection against very small particles or are concerned about potential airflow restrictions, you may want to consider a higher MERV-rated filter or consult with an HVAC professional.
Details:
Automotive air filter, filter type - engine design round, element only Filters no, height 10 1/2 in, width length outside DOA. Power adapters and other modifications may be necessary for proper operation in countries.
specifications faclighting:
- brand: Baldwin Filters
- mpn: Pa639
- part type: Air Filter
- upc: 791440007253
payments faclighting:
- wallet: paypal
- other
- credit card: diners-club
shipping faclighting:
- service: ups ground
- type: fixed
- carrier: ups
- transit: 4-6 days
- class: standard
offer faclighting:
- started: july 13, 2025
- options: ship-to-home
- availability: in stock
- prices: $7.44–$70.47
- item condition:
- New
- Neu
- New other (see details)
- sold #: 14
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
returns faclighting:
- paid by: seller
- policy: returns accepted
- method: money back
- time: 30 days
seller faclighting:
- rating: 99.2%
- city: lake forest, il
- # reviews: 109854
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