Most Popular Filter Sizes
12x24x4 Furnace Filter
This 12x24x4 filter measures:
11 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 12x24x4 Air Filter gives you the cleanest air, featuring a 5-STAR Energy Cost Index.This is your best value, as these filters can last up to six months before needing a change. Buy in bulk today and save, with higher dust holding capacity backed by the Camfil Performance Guarantee. Our top quality option, this MERV 8 is mechanical rather than electrostatic. Best value in MERV 8 efficiency filtration. You may pay a little more but it will pay off in the long run, with reduced changing times.
You will receive 12 filters in each box. We offer hassle-free ordering processes on our filters, which are all manufactured in North America.
In Stock—Ships within 24 hours for your convenience via Canada Post. 100% free and fast!
AP-11 from CAMFIL
MERV 11 – High Efficiency 12x24x4 Air Filter MERV 11 electrostatic filter by Camfil gets the job done! Choose this option for medium range efficiency. Keeps indoor air clean and fresh, perfect for infants and elderly. Replace every three months. Energy Cost Index rating of 5 stars!
Each box has12 filters. Fast and easy shipping. Save your money today and buy in bulk. We always offer FREE shipping to anywhere in Canada. Don’t need 12 filters? Well, you can always ask a friend to share the bill with you. You STILL save!
IN-STOCK, with shipment from the warehouse within one business day throughout Canada. Always fast and FREE! How can you beat that? It’s easy—order by Master Card, Visa or Paypal!
AP-3 from CAMFIL
MERV 8–Standard Capacity 12x24x4 Air Filter is your best bet when it comes to affordable options. Standard economics with lowest price. Change after three months. Pleated MERV 8 mechanical air filter with Energy Cost Index rating of 2 stars.
This filter is IN STOCK. We ship via Canada Post with FREE shipping within one day. Simply choose your filter option and size then pay through Master Card, Visa or Paypal. Easy, secure website! Get a box of 12 filters when you buy our high-quality products from Camfil.
FREE SHIPPING throughout Canada via Canada Post, delivering high-quality air filters from Camfil. Your choice is clear!
IMPORTANT: In the case of returns, buyers must cover shipping and handling fees.
NOTE: Item you want not in stock? No problem. We can email you when it will ship. Special orders ship within 10 business days. Product photos don’t necessarily reflect the product that you will receive.