The Filtrete 16x25x4 AC Furnace Air Filter is a pleated HVAC filter designed for use in compatible air-cleaning systems serving residential heating and cooling equipment. It has an MPR 1550 and MERV 12 rating, and its actual dimensions are 15.88 x 24.56 x 4.31 inches. The package contains two filters intended to support routine replacement over an extended maintenance schedule.
Quick Overview
This filter is designed to help capture particles circulating through household air-conditioning and furnace systems. Filtrete’s 3-in-1 technology is designed to pull in and trap unwanted particles while allowing cleaner air to flow through. The filter helps capture dust, lint, and other household allergens, and it is certified asthma and allergy-friendly.
| Product type | AC furnace and HVAC air filter |
|---|---|
| Brand | Filtrete |
| Nominal size | 16 x 25 x 4 inches |
| Actual dimensions | 15.88 x 24.56 x 4.31 inches |
| Filtration ratings | MPR 1550 and MERV 12 |
| Package size | Two filters |
| Compatible systems | Honeywell, TrionAirBear, Bryant, Carrier, and Lennox media air cleaners |
What This Filtrete Air Filter Is Designed to Do
Air filters sit in the return-air path of an HVAC system. As air moves through the equipment, the filter helps collect airborne particles before the air is distributed back through the home. The Filtrete model described here is intended for systems that use a nominal 16 x 25 x 4-inch filter and accept its specific actual dimensions.
The MERV 12 and MPR 1550 ratings identify the filter’s stated filtration level under their respective rating systems. The product information says it helps capture 50% of small particles from the air passing through it. This claim applies to the manufacturer’s specified testing conditions and should not be treated as a guarantee of overall indoor-air quality or the removal of every airborne contaminant.
Key Features
- Deep pleated design: The filter uses a pleated format intended to provide filtering surface area within a four-inch HVAC filter profile.
- MPR 1550 and MERV 12: These are the stated filtration ratings for the product.
- Filtrete 3-in-1 technology: The technology is designed to pull in and trap unwanted particles while allowing cleaner air to flow through.
- Allergen and household particle capture: The filter helps capture dust, lint, and other allergens found in household air.
- Asthma and allergy-friendly certification: The filter is identified as certified asthma and allergy-friendly.
- Two-filter package: Two replacement filters are included in the package.
- Replacement reminders: The Filtrete Smart App can be used on iOS or Android to set 90-, 180-, or 365-day reminders.
Dimensions and Compatibility
Nominal HVAC filter sizes are rounded sizing labels, so they may not match the physical measurements of the filter. Although this product is identified as a 16 x 25 x 4-inch filter, its actual dimensions are 15.88 inches wide, 24.56 inches long, and 4.31 inches deep. These measurements are important when checking whether it will slide into the existing filter slot correctly.
The filter is listed as compatible with Honeywell, TrionAirBear, Bryant, Carrier, and Lennox media air cleaners. Compatibility can still depend on the specific HVAC cabinet or media-cleaner model. Before installation, compare the dimensions printed on the existing filter with the actual dimensions above and check the equipment manufacturer’s requirements.
Replacing the Filter
The product information recommends changing a four-inch filter at least once every 12 months for optimal performance. The appropriate interval can vary with household conditions, including dust levels, renovation activity, pets, and how frequently the HVAC system operates. A filter may require earlier attention if it becomes visibly loaded with dust or if the equipment manufacturer specifies a shorter schedule.
The included app reminder feature provides several scheduling options. Users can set reminders for 90, 180, or 365 days, which allows the replacement schedule to be adjusted to the home and the system’s operating conditions. A reminder does not replace a visual check of the filter or the maintenance instructions for the HVAC equipment.
What to Check Before Installation
Correct sizing is the most important consideration when replacing a media air filter. A filter that is too large may not fit, while one that is too small can leave gaps around the frame. Gaps may allow unfiltered air to bypass the filter. Measure the existing filter or consult the equipment documentation instead of relying only on the nominal size printed on a replacement package.
- Confirm that the existing filter slot accepts a four-inch-deep filter.
- Compare the current filter’s actual measurements with 15.88 x 24.56 x 4.31 inches.
- Check that the HVAC cabinet or media air cleaner is one of the listed compatible systems.
- Follow the airflow-direction arrow printed on the replacement filter.
- Use the HVAC manufacturer’s maintenance instructions if they specify a different replacement interval.
Common Household Applications
This filter is intended for central HVAC systems that use a compatible media air cleaner or filter cabinet. It may be used in homes where heating and cooling equipment regularly recirculates indoor air and where the occupants want a filter designed to capture dust, lint, and other household allergens.
The asthma and allergy-friendly certification may be relevant to households that give particular attention to airborne allergen capture. However, an HVAC filter is only one part of an indoor-air-quality routine. It does not replace source control, ventilation, cleaning, or specialized air-cleaning equipment where those measures are needed.
Frequently Asked Questions
What are the actual dimensions of this filter?
The actual dimensions are 15.88 x 24.56 x 4.31 inches. The nominal size is 16 x 25 x 4 inches.
Which HVAC systems is it listed to fit?
It is listed for Honeywell, TrionAirBear, Bryant, Carrier, and Lennox media air cleaners. Confirm the specific equipment requirements and filter-slot dimensions before installation.
How often should the filter be changed?
The stated guidance is to change the four-inch filter at least once every 12 months for optimal performance. Household conditions and HVAC manufacturer instructions may call for more frequent replacement.
What do MERV 12 and MPR 1550 mean for this product?
MERV 12 and MPR 1550 are the stated filtration ratings. The product information also says the filter helps capture 50% of small particles from the air passing through it under specified conditions.
Can replacement reminders be scheduled?
Yes. The Filtrete Smart App for iOS or Android supports 90-, 180-, and 365-day filter-change reminders.
For the latest product information and specifications, view the current product listing.
Final Thoughts
The Filtrete 16x25x4 AC Furnace Air Filter combines a MERV 12 and MPR 1550 rating with a deep pleated design, stated allergen and household-particle capture, and compatibility with several media air-cleaner brands. Its actual dimensions should be checked carefully because they differ from the nominal 16 x 25 x 4-inch size. For routine HVAC maintenance, the two-filter package and optional replacement reminders provide a straightforward way to plan filter changes.