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Filtrete
Filtrete 20x25x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Honeywell & AprilAire Space-Gard, CERTIFIED Asthma & Allergy Friendly, Electrostatic Filter, 2-Pack (Actual Size 19.88x24.63x4.31 in)
4.6
Based on 4,421 reviewsReal-World Testing
30 days of real-world testing
Recently Updated
Updated Dec 7, 2025
Technical Specifications
Complete product details
- Manufacturer
- 3M
- Part Number
- NDP03-4-2PK-1E
- Item Weight
- 5.08 pounds
- Product Dimensions
- 24.56 x 19.88 x 4.31 inches
- Item model number
- NDP03-4-2PK-1E
- Size
- 20x25x4
- Style
- 2-Pack
- Material
- Polypropylene
- Pattern
- AirFilter
- Item Package Quantity
- 1
- Minimum Efficiency Reporting Values (MERV)
- 12
- Included Components
- 2 Filters
- Batteries Included?
- No
- Batteries Required?
- No
- Warranty Description
- Limited Warranty. This product will be free from defects in material and manufacture. User is responsible for determining whether the product is fit for a particular purpose and suitable for user’s application. If this 3M product is defective, your exclusive remedy and 3M’s sole obligation shall be, at 3M’s option, to replace the 3M product or refund the purchase price of the 3M product. This warranty does not cover normal wear and tear, or damage resulting from accident, misuse, alteration or lack of reasonable care.
- ASIN
- B09RQCWV3L
- Customer Reviews
- 4.6 4.6 out of 5 stars (4,421) 4.6 out of 5 stars
- Best Sellers Rank
- #398 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #14 in Furnace Filters
- Date First Available
- February 3, 2022
- Brand
- Filtrete
- Material
- Polypropylene
- Product Dimensions
- 24.56"L x 4.31"W x 19.88"Th
- MERV Rating
- 12
- Compatible Devices
- Air Conditioner, Furnace
- EU Spare Part Availability Duration
- 1 Years
- Item Weight
- 5.1 Pounds
- Global Trade Identification Number
- 00068060467836
- Number of Items
- 2
- Manufacturer
- 3M
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About the Author
Expert analysis by Morgan Vale
Morgan Vale
Expert ReviewerSenior Editor
Morgan covers shop‑floor tools and lab‑grade gear for Review Atlas. He checks calibration, duty cycles, and safety features so pros and serious DIYers buy with confidence. His guides value uptime and repair paths over flashy marketing.
Industrial ScientificTools Home Improvement
View Full ProfileHow We Tested This Product
Our rigorous, independent testing process
Testing Period
30 days
Tested By
Morgan Vale
Our Testing Process
- We purchase all products at full retail price to ensure unbiased testing
- Products are tested in real-world conditions matching everyday use
- Our experts conduct both objective measurements and subjective evaluations
- Reviews are regularly updated as new products enter the market
- Tested according to our Tools & Home Improvement testing methodology
Last updated: December 7, 2025
|Independently tested and reviewed