• 20x25x4 Air Filter Plus (MERV 8)
  • Aerterra 12x12x1 MERV 11 AC Furnace Air Filter Plus box, back of package
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Aerterra

Aerterra 16x25x4 MERV 8 AC Furnace Air Filter (4-Inch Deep Pleat)

Aerterra 16x25x4 MERV 8 AC Furnace Air Filter (4-Inch Deep Pleat)

$40.00 USD
$40.00 USD
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The 16x25x4 deep-pleat MERV 8 air filter delivers everyday particle filtration with the longer life of a 4-inch media filter. It captures dust, pollen, lint, dust mites, and mold spores while maintaining strong airflow, and typically lasts 6 to 12 months between changes. Designed for 4-inch cabinets and whole-house air cleaners. Single unit or case pack.

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How the Aerterra subscription works

Clean air, zero hassle. Order more and pay less, or subscribe and never think about it again.

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    1: Pick your filter

    Choose the right size high-performance air filter for your space.

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    2: Set it & forget it

    Subscribe and get free shipping on fresh filters right when you need them. No more guessing or last-minute hardware store runs!

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    3: Breathe easy

    Enjoy cleaner air while reducing waste. Our filters are made with eco-conscious materials, so you’re helping the planet with every swap!

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    4: Stay in control

    Need to pause, swap, or adjust your subscription? No problem! Manage everything easily from your account.

Real Customers, Real Results

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Frequently Asked Questions

What size air filter do I need?

Check the size printed on the frame of your old filter, or measure the length, width, and depth in inches (round up if needed). Aerterra filters are labeled by nominal size, like 16x25x1, so you can match it directly to your return vent or furnace opening.

How often should I replace my Aerterra filter?

Most 1-inch filters should be replaced every 60–90 days, depending on your home's air quality, pets, and HVAC usage. Thicker 4-inch filters typically last 6–9 months. A subscription ships a fresh filter automatically on the schedule that fits your home.

What does the MERV rating mean?

MERV (Minimum Efficiency Reporting Value) measures how well a filter captures airborne particles, on a scale of 1–16. Higher MERV ratings capture smaller particles like pet dander, smoke, and bacteria. We offer MERV 8, 11, and 13 options depending on how much filtration your home needs.

What are Aerterra filters made from?

Aerterra filters are made from renewable, plant-based corn fiber media grown by American farmers, replacing traditional petroleum-based filter materials, so you get cleaner air with a smaller environmental footprint.

Can I subscribe and save?

Yes. Choose Subscribe & Save at checkout to set your own delivery frequency, get free shipping on every order, and pause, swap, or cancel anytime from your account.

Not sure this filter fits your system?

Message our team before or after you order and we'll help you confirm the right size for your HVAC system or return.

Questions & Answers

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Learn More About Your Filter

Sizing, MERV ratings, and replacement guides to help you get the most out of it.

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Looking for a Different MERV Rating?

Same size, different level of filtration.