+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3, Coquitlam
Usually ready in 24 hours
Not sure this fits your furnace? Call us — we're happy to help
Improve your indoor air quality with this high-efficiency 20 x 20 x 2-inch pleated air filter. Designed for residential and commercial heating and cooling systems, this MERV 8 rated filter provides superior filtration by capturing common household allergens such as dust, lint, pollen, and mold spores. The durable pleated design increases surface area for maximum dust-holding capacity while maintaining optimal airflow, helping to extend the life of your HVAC equipment and reduce energy consumption. Whether used in a furnace, air handler, or central AC system, this replacement filter is an essential component for maintaining a cleaner, healthier home environment and ensuring your appliance operates at peak performance.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com
Compatible parts and related replacements
The 345-121 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.
The easiest way is to match the part number (345-121) 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.
Most Air Filter and Cleaners including the 345-121 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.
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 345-121 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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