Most Popular Filter Sizes
20x24x4 Furnace Filter
This 20x24x4 filter measures:
19 3/8 x 23 3/8 x 3 3/4 inches. Can replace any brand of filter. Get premium-quality furnace and air conditioning filters that are made in North America by Camfil. Best of all, get FREE SHIPPING on all orders sent via Canada Post. Usually sent within one business day.
Side-by-Side comparison.Helping you select the best option:
MERV 8 - High Capacity 5-STAR Energy Cost Index – The longest lasting filter you can buy. Medium efficiency 30/30 Pleated Panel Filter, boasting a 5-STAR Energy Cost Index, with higher dust holding capacity. Trust your family’s health to us and use these low priced filters for great benefits.
You get 6 filters in each box, a hassle-free way to save on filters. In Stock—we will ship your order within one business day! Take advantage of this great deal and order online today. It’s quick and easy!
AP-11 from CAMFIL
MERV 11 – High Capacity 20x24x4 Air Filter is the best in class, presenting a long service life coupled with low energy expenditures. Choose this high-efficiency filter to get rid of those harmful allergens in the air. Extended surface pleated filteris your top option; change every four months.
Each box has 6 filters, allowing you to order once every two years. Start saving today and place this filter in your cart. Catch up with your friends on Facebook and see if they want to go in on a box with you.
IN-STOCK, with shipment occurring in one business day throughout Canada. Enjoy free shipping when you buy now.
AP-3 from CAMFIL
MERV 8–Standard Capacity 20x24x4 Air Filter – an economical choice for your family. It’s never been more affordable to outfit your home with pleated air filters that easily remove air-borne contaminants. Change after three months. Energy Cost Index rating:2 stars.
This filter is IN STOCK -- order today online and save yourself trips to the store every few months. You get a box of six filters that ship within one business day. Buy from our Canadian store and share a box with your neighbor to save even more. Only high-quality products!
With FREE SHIPPING to Canada – always – we guarantee satisfaction. We even ship to Toronto within one business day.
IMPORTANT: When returning an item, buyers are responsible for the shipping and handling fees associated with the return.
NOTE: If your desired item is not in stock, we will let you know the date we expect to ship it. Product photos don’t necessarily represent the actual product that you will receive.