Camfil Dual 9 – High-Efficiency, Cost-Saving Filter

Camfil

(19 reviews) Write a Review
$163.00 - $423.00
  • Lasts 9-12 months (longest filter lifespan possible!)
  • Lower cost of maintenance
  • Lower energy costs
  • Less waste
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Product Overview

STOP WASTING MONEY on Filters That Don’t Last!
Upgrade to the Dual 9 and SAVE BIG on Time, Energy & Costs!

You wouldn’t throw money out the window every few months… so why do it with your air filters?

Imagine this:
No more constantly replacing filters. No more high energy bills.
No more wasted time and money on maintenance.

The Camfil Dual 9 is engineered to outlast, outperform, and out-save ANY traditional filter.
It lasts 3× longer, cuts down on waste, slashes maintenance costs, and reduces energy consumption — all while keeping your air cleaner than ever!

  • Lasts 9–12 months — 3× longer than regular filters
  • Lower energy bills & reduced maintenance costs
  • Healthier indoor air for your home or business
  • Better for the environment — less waste, more efficiency

Why settle for outdated, short-lived filters when you can UPGRADE today?
Order now and start saving immediately!

Overview

Tested for years before being released, the Camfil 30/30 Dual 9 is our highest energy saver, with lifetime efficiency and a long service life of 9–12 months. Guaranteed! It lasts 9 months in heavy-load applications and up to 12 months in light to moderate ones.

It also reduces the need for coil and system cleaning by up to 50% compared with lower-efficiency MERV 8 and MERV 7 filters.

Each Dual 9 replaces three or four standard pleated filters — helping you cut:

  • Waste disposal
  • Landfill impact
  • Annual filtration costs
  • Energy consumption
  • Maintenance time and expense

At the same time, you’ll enjoy cleaner indoor air, as the Dual 9 removes airborne pollen, allergens, and fine dust such as:

  • Mites, textile and carpet fibers, mold spores, lint, cement dust
  • Coal, sanding residue, lead, and particles from humidifiers and nebulizers

Camfil was the first air-filtration manufacturer to provide a written performance guarantee — and they’ve raised the bar even higher. The Dual 9 delivers the lowest Total Cost of Ownership with zero risk. Built to last. Tested for proof.

For details, download the Camfil Performance Guarantee (PDF) .

SHIPPING

Shipping is always FREE in Canada for all orders, including the Camfil Dual 9. Order by 11 a.m. and receive it the next business day! Some restrictions apply.

TO ORDER

Shop online 24/7 — secure checkout with Visa, MasterCard, or PayPal. Prefer to order by phone? Call (888) 315-0105 (Mon–Fri, 9 a.m.–2 p.m. ET).

Upgrade Now – Experience Dual 9 Performance

OTHER DETAILS

  • Model: Dual 9
  • Efficiency: MERV 9 and MERV 9A
  • Media: Dual-layered blended polyester
  • Color: Green
  • Manufactured to high-quality standards
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Exact Sizes (inches):
  • 10x20x1 : 9 ½ × 19 ½ × 7/8
  • 12x20x1 : 11 ½ × 19 ½ × 7/8
  • 12x24x1 : 11 ½ × 23 ½ × 7/8
  • 14x20x1 : 13 ½ × 19 ½ × 7/8
  • 14x25x1 : 13 ½ × 24 ½ × 7/8
  • 16x20x1 : 15 ½ × 19 ½ × 7/8
  • 16x25x1 : 15 ½ × 24 ½ × 7/8
  • 20x20x1 : 19 ½ × 19 ½ × 7/8
  • 20x24x1 : 19 ½ × 23 ½ × 7/8
  • 20x25x1 : 19 ½ × 24 ½ × 7/8
  • 24x24x1 : 23 ½ × 23 ½ × 7/8
  • 25x25x1 : 24 ½ × 24 ½ × 7/8
  • 12x24x4 : 11 ⅜ × 23 ⅜ × 3 ¾
  • 16x20x4 : 15 ⅜ × 19 ⅜ × 3 ¾
  • 16x25x4 : 15 ⅜ × 24 ⅜ × 3 ¾
  • 20x20x4 : 19 ⅜ × 19 ⅜ × 3 ¾
  • 20x24x4 : 19 ⅜ × 23 ⅜ × 3 ¾
  • 20x25x4 : 19 ⅜ × 24 ⅜ × 3 ¾
  • 24x24x4 : 23 ⅜ × 23 ⅜ × 3 ¾

Reviews

(19 reviews) Write a Review

19 Reviews Hide Reviews Show Reviews

  • 3
    Camfil Dual 9 – High-Efficiency, Cost-Saving...

    Posted by Wayne Lee on 27th Dec 2025

    Camfil Dual 9 – High-Efficiency, Cost-Saving Filter

  • 5
    Peace of...

    Posted by Pino Ricciardi on 22nd Dec 2025

    Great filter!! Just install and forget about it. Will last up to a full year. Great cost savings and good for the environment. Highly recommended.

  • 5
    Camfil Dual 9 – High-Efficiency, Cost-Saving...

    Posted by Gerald Krispin on 17th Nov 2025

    Camfil Dual 9 – High-Efficiency, Cost-Saving Filter

  • 5
    Always buy...

    Posted by Tim Melnyk on 15th Aug 2025

    Great filters. Great price and fast delivery.

  • 5
    Camfil Dual 9...

    Posted by David McCulloch on 19th May 2025

    Order arrived quickly...filters perform as described...this is why I have been a loyal Furnace Filters Canada customer for many years!

  • 5
    Excellent

    Posted by Gerald Gervais on 22nd Jan 2025

    Ordering was easy, delivery was quick, quality is excellent!

  • 5
    Top Graded...

    Posted by Jason Wilkinson on 19th Dec 2024

    Just got new hvac system the technician put a very cheap poor quality filter in something was off he then refer me to amazon for future filter replacement... Well I must say im not that kind of guy and did my own research. many many day of learning as much as I can, With all my work I end up here. Order was very quick , and the Filter wow night and day compared to what the technician install on a brand new 20,000$ unit. the Camfil filter a a gem notice air clean up right away, not only the furnace performs way better no more weird sound. Thank you and this is my go place now.

  • 5
    Great...

    Posted by Susan Maynard on 4th Dec 2024

    Spoke to the representative and they reviewed the product and ensured I had the correct size. I’m very happy with the quality of the air filters and the service I received.

  • 5
    1st time purchase, will buy there again.

    Posted by Neil McEwen on 25th Nov 2024

    Arrived in a couple of days (good) and no damage from the shipper (real good). This is a first time purchase and first time using Camfil Dual 9 Pleated Filters. They look far superior compared to the “other 4 inch filters". There is a lot more surface to catch dust, pollen etc., which will translate to longer service time. Would recommend as the outlay is not a lot more than the cheaper ones and you get a whole lot more filter.