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We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days from delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
Experience a thoughtful blend of convenience and performance with DerBlue’s foldable, high-efficiency furnace filters. The design takes the guesswork out of replacement, letting you unfold, lock with rivets, and be ready for operation in minutes. When not in use, the compact form tucks away neatly, helping you maintain an orderly utility space.
Designed to align with Lennox X6673 (HCF20) models, the filter’s nominal size is 20x25x5 inches, with an actual size of 19-3/4 x 24-3/4 x 4-3/8 inches. This specificity helps maintain consistent airflow and fit inside your furnace or HVAC unit.
The MERV 13 rating targets fine particles in the 1.0–3.0 micron range, supporting a cleaner indoor environment. Combined with electrostatic synthetic media, the filter can offer strong dust capture and extended service life under typical usage.
In active homes, the foldable DerBlue filter can simplify seasonal changes and storage in limited spaces. It suits households with pets, small offices, and rooms that accumulate dust quickly.
Under normal conditions, a single unit can function for approximately 6 to 12 months, offering a practical, cost-conscious approach to ongoing air filtration. A two-pack further supports continuity and reduces replacement frequency.
Q: Is this filter compatible with Lennox X6673 HCF20 systems?
A: Yes—designed to fit Lennox X6673 (HCF20) with an actual size close to 19.75 x 24.75 x 4.38 inches.
Q: How long can I expect the DerBlue MERV 13 filters to last?
A: Under normal conditions, each filter lasts about 6 to 12 months, depending on use and environment.
We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.
We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.
We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.
To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.
Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.
When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.
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