20x22x1 MERV 8 Air Filter — 12-Pack

The 20x22x1 MERV 8 air filter 12-pack ships free from Cedars HVAC, is made in the USA, and gives you a full year of monthly replacements at a lower per-filter cost than any big-box store.

What’s In Your 20x22x1 MERV 8 12-Pack

This case contains 12 individual 20x22x1 pleated air filters, MERV 8, ready to install as-is with no cutting or trimming required. 20x22x1 is a slightly less standard size that shows up in older Miami-area single-family homes, condos with custom-fabricated returns, and some vertical air handlers where 20×20 leaves gaps and 20×25 won’t fit. Sometimes labeled 22x20x1 — same filter, either orientation. Homeowners, landlords, and property managers especially appreciate having a full year’s supply on the shelf — no more emergency runs to the hardware store, no more running the wrong-size filter just because it’s what was left on the shelf.

Some homeowners call it a furnace filter, others call it an air filter, an AC filter, or an HVAC filter. Either way, this 20x22x1 pleated case of 12 is sized to match your existing return grille or filter rack.

What Does MERV 8 Filtration Actually Do?

MERV stands for Minimum Efficiency Reporting Value — an ASHRAE-standardized rating that describes how well a filter captures airborne particles by size. MERV 8 captures household dust, lint, pollen, dust mites, and standard indoor debris.

Particulate range captured: 3.0 to 10.0 microns (dust, pollen, mold spores, pet dander). Airflow: excellent airflow — the least restrictive of any pleated option, so your system doesn’t work harder than it has to. This rating is a strong match for typical households without severe allergy or asthma concerns, rental properties, and property managers who need reliable, budget-friendly filtration between tenants.

Specifications

• Nominal Size: 20x22x1 inches
• Actual Size: 19.5 x 21.5 x .75 inches
• MERV Rating: 8
• Thickness: 1-inch
• Filter Media: Electrostatic pleated synthetic
• Frame: Beverage-board (moisture-resistant paperboard)
• Support: Galvanized steel mesh
• Quantity: 12 filters (one full year of monthly replacements)
• Made In: USA
• Sold By: Cedars HVAC (Miami, FL)

How Often Should You Replace a 20x22x1 MERV 8 Filter?

For a 1-inch MERV 8 filter like this one, plan on replacing every 30 to 60 days. Because the media is less dense than higher-MERV options, dust and debris build up faster. With 12 filters in the case, you are set up to swap on a monthly schedule for a full year without running short.

Why South Florida Homes Change Filters Faster

Miami-Dade and Broward homes cycle their HVAC harder than almost anywhere in the country. Between year-round cooling load, elevated indoor humidity, salt air near the coast, seasonal Saharan dust events, and increasingly common wildfire smoke drift from the Everglades, filters here saturate faster than the national average. If you are in South Florida, err on the shorter end of the replacement window — especially if you have pets or run your system continuously in July and August.

Free Shipping, No Minimum, Ships from Miami

No shipping charges. No surprise fees at checkout. No minimum order value. This 20x22x1 case ships free anywhere in the continental United States. These air filters are manufactured in the USA and shipped directly to your door on Cedars HVAC’s behalf. Stock up once, install on schedule, and don’t think about your furnace filter again until next year.

Frequently Asked Questions

How do I know if 20x22x1 is the right size for my system?

Check your existing filter. The size printed on the side or edge — normally a set of three numbers like 20x22x1 — is the nominal size. It should match this listing exactly. If your current filter reads 22x20x1 instead, that is the same size — filter width and height are interchangeable in most return-grille and filter-rack installations. If your existing filter shows an actual dimension (e.g. 19.5 x 21.5 x .75 inches), that is the manufactured cut size and confirms 20x22x1 nominal.

Can I upgrade my system to MERV 8?

Yes — MERV 8 is compatible with virtually every residential HVAC system built in the last three decades. It is the standard rating most systems are engineered around, and no static-pressure check is required.

How fast does shipping arrive?

Most orders ship within one business day. Continental US delivery is typically 3 to 5 business days after ship. Cedars HVAC uses tracked, insured shipping on every filter case, and you will receive a tracking number by email as soon as the case leaves the fulfillment warehouse.

Do you offer bulk pricing on multiple 20x22x1 MERV 8 cases?

Yes — property managers, landlords, and multi-family owners can email [email protected] or call (305) 850-6693 for volume pricing on 3 or more cases of the same size. Contractors and multi-family accounts can also apply for a wholesale account for standing discounts.