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ProShield MERV 13 Pleated Air Filter 18x18x1 - 12 Pack

Name: ProShield MERV 13 Pleated Air Filter 18x18x1 - 12 Pack
Brand: ProShield
SKU: B0FHK89YBD
Price: 48.32 USD
Availability: InStock
Rating: 4.8 (26 reviews)

4.8 (26 reviews)

Posted Jul 15, 2026Updated Jul 16, 2026

$48.32$128.27

62% OFFYou save $79.95

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In StockPrice changed 40d ago

Is this a good deal?

MERV 13 Pleated Air Filter
Recommended 3 month air filter life, per 1 air filter
Made in USA
Nominal Dimensions: 18x18x1
Actual Dimensions: 17.75x17.75x0.75

Exceptional Deal

Save 62% on this 12-pack of MERV 13 filters. Captures allergens, smoke, and bacteria. Ideal for high-efficiency home air purification.

What we like

MERV 13 captures microscopic particles
12-pack offers long-term value
Made in the USA
Recommended 3-month replacement cycle

Watch out for

May restrict airflow in older HVAC systems
Actual dimensions slightly smaller than nominal

Tip: Check your filter slot depth - actual thickness is 0.75 inches.

Our Take

Best for: Homeowners needing high-efficiency air filtration for allergies or smoke.

The ProShield MERV 13 12-pack delivers professional-grade filtration at a fraction of the typical cost. 3 microns, including pollen, mold spores, dust mites, and bacteria. The pleated design maximizes surface area for better airflow without sacrificing efficiency. 32 for a dozen filters, this pack covers a year's supply if changed every three months. The 62% discount off the original price makes it one of the best values for MERV 13 filters on the market. 75, which fits standard 18x18x1 slots but leaves a small gap - check your system's tolerance. For homes with pets, allergies, or wildfire smoke, this is a smart upgrade from basic fiberglass filters. The only tradeoff is that MERV 13 can create higher static pressure, so verify your furnace fan can handle it. Otherwise, this is a top-tier performance filter at a budget-friendly price.

Price Analysis

Currently $48.32, down 62% from $128.53. The 30-day average was $128.53, and the 180-day average was $149.07, so this is a steep discount. It's likely at or near an all-time low - an excellent time to stock up.

Common Questions

How often should I replace these filters?

Replace every three months for optimal performance, or more frequently if you have pets or heavy dust.

Will these fit my standard 18x18x1 furnace slot?

Yes, the nominal size is 18x18x1, but actual dimensions are 17.75x17.75x0.75 inches. They fit most standard slots, but measure your slot depth to ensure the 0.75-inch thickness works.

What is MERV 13 rating good for?

MERV 13 captures 90% of particles 0.3-1.0 microns, including smoke, bacteria, and virus carriers. It's ideal for allergy sufferers and homes near pollution or wildfire areas.