Email Us
Price Per Filter
16x25x4 Air Filters – Clean Air, Extended Lifespan, Total HVAC Protection
The 16x25x4 air filter is your home’s frontline defense against dust, allergens, and system wear. Designed for efficiency and durability, it improves indoor air quality while protecting your HVAC system from clogging and damage. Whether you’re fighting seasonal allergies, pet dander, or general dust buildup, this deep-pleated filter delivers dependable performance with every use.
Perfect for furnaces, central air systems, and other HVAC setups with thicker filter slots, the 16x25x4 air filter captures both fine and large particles, ensuring cleaner air and better system health.
Why Choose the 16x25x4 Air Filter?
- Removes Allergens: Filters out dust, pollen, and pet dander to help allergy sufferers breathe easier
- Improves HVAC Efficiency: Helps your system run smoother and more efficiently by preventing clogs
- Protects HVAC Components: Keeps harmful debris from reaching internal system parts
- Tool-Free Installation: Slide it in quickly without the need for tools or special adjustments
- Available in MERV 8, 11, and 13: Customize your filtration strength based on your needs
🔍 Product Specs at a Glance
- Size: 16 x 25 x 4 inches (actual size: 15.5 x 24.5 x 4”)
- MERV Ratings: MERV 8 (basic), MERV 11 (enhanced), and MERV 13 (high-efficiency)
- Recommended Replacement: Every 3–6 months based on usage and air quality
- Frame: Moisture-resistant, durable frame for long-term use
- Media: Electrostatic, pleated filter material traps small and large particles effectively
🏠 Ideal For:
- Homes with pets or allergy sufferers
- HVAC systems with deeper (4") filter slots
- Households focused on energy savings and system longevity
- People looking for low-maintenance, high-performance filtration
⚙️ MERV Rating Comparison: Which Should You Choose?
| MERV Rating | Captures | Best For |
|---|---|---|
| MERV 8 | Dust, lint, pollen | General home use |
| MERV 11 | Pet dander, mold spores, smoke | Homes with pets or light allergies |
| MERV 13 | Fine dust, bacteria, virus carriers | Allergy control and high-filtration environments |
Maintenance Tips for Peak Performance
- Replace on Schedule: Change every 3–6 months or more often in high-use conditions
- Check Fit: Confirm the actual filter size (15.5 x 24.5 x 4") matches your system before installation
- Don’t Reuse: Always replace with a fresh filter to maintain effectiveness
- Watch Airflow: If airflow seems restricted, it might be time to swap the filter
FAQs About 16x25x4 Air Filters
What does 16x25x4 mean in air filters?
It refers to the filter’s nominal dimensions in inches: 16” x 25” x 4”. Always check the actual size to ensure a proper fit for your HVAC unit.
Can I upgrade to a higher MERV rating?
Yes, but check with your HVAC manufacturer first. Higher MERV filters trap finer particles but may reduce airflow in older systems.
How often should I replace the 16x25x4 filter?
Every 3–6 months is typical, though homes with pets or allergies may need more frequent changes.
Is this filter washable?
No, this is a disposable filter designed for one-time use. Replace it to maintain optimal air quality and system performance.
What should I look for when buying this filter?
Make sure the dimensions match your unit, and select a MERV rating that suits your home’s needs — higher for allergy control, lower for general use.
Shop Reliable 16x25x4 Filters from Custom Filters Direct
Looking for clean air and a more efficient HVAC system? The 16x25x4 air filter from Custom Filters Direct offers high-quality filtration with the reliability you expect. Choose from a variety of MERV ratings, enjoy bulk savings, and get fast shipping directly to your door.
Protect your home, improve air quality, and extend the life of your HVAC system — all with one simple upgrade. Order your 16x25x4 filter today and breathe easier tomorrow.