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Furnace Parts DIY
Air Filter and Cleaner 345-021 furnace replacement part

Furnace Parts DIY

345-021

$83.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

24" X 25" X 4" MERV 11 FILTER ACTUAL SIZE 23-11/16" X 24-3/4" X 4-5/16"

Low stock — only 1 left

Pickup available at 75 Blue Mountain St #3, Coquitlam

Usually ready in 24 hours

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Local Pickup

Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

Improve your indoor air quality with this high-efficiency 24" x 25" x 4" MERV 11 pleated air filter. Designed for residential and commercial HVAC systems, this deep-pleated furnace filter provides superior filtration compared to standard fiberglass models. The MERV 11 rating ensures the capture of common household contaminants such as dust, pollen, pet dander, mold spores, and fine particles. By maintaining clean airflow, this replacement filter helps protect your heating and cooling equipment from dust buildup, potentially extending the lifespan of your system and improving energy efficiency. Ideal for households with pets or allergy sufferers, this durable media filter ensures a cleaner, healthier breathing environment throughout the home.

Specifications

Type
Air Filter and Cleaners
Size
24" x 25" x 4"
Dimensions
25 inches × 24 inches × 4 inches
Application
Compatible with standard HVAC systems, furnace units, and central air conditioning systems that require a 4-inch deep media filter. Suitable for both residential and light commercial use.
Specifications
MERV 11 efficiency rating; deep-pleated synthetic media for increased surface area and high dust-holding capacity; moisture-resistant frame.

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com

Common questions

Will the 345-021 fit my furnace?

The 345-021 is a replacement part. Match your furnace model number on our site to confirm the fit. This Air Filter and Cleaner is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.

How do I know if the 345-021 is compatible with my furnace?

The easiest way is to match the part number (345-021) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Air Filter and Cleaners for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.

How fast can I get the 345-021 shipped?

Most Air Filter and Cleaners including the 345-021 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.

Can I pick up the 345-021 at your store?

Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Filter and Cleaners orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 345-021 is in stock before visiting.

Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.

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