• Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

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    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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  • Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

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  • Home
  • Air Filters
  • Fiberglass 18" X 18" X 1" Panel Filter - Equipment Protection

Fiberglass 18" X 18" X 1" Panel Filter - Equipment Protection

4
14 reviews
◆
 
Average rating 4.1/5
5 stars
(10)
4 stars
(0)
3 stars
(2)
2 stars
(0)
1 star
(2)
CA, Inc. FG18x18x1Our#: 188121
Made in USA
Fiberglass 18" X 18" X 1" Panel Filter - Equipment Protection
Fiberglass 18" X 18" X 1" Panel Filter - Equipment Protection
Fiberglass 18" X 18" X 1" Panel Filter - Equipment Protection
Compatibility guarantee — Wrong fit or not happy - we'll make it right, up to a whole year
Change every 1 months
Change every 1 months Swap on schedule for best performance
Made with pride in Greenwood, Indiana
Made with pride in Greenwood, Indiana Your purchase supports American jobs
Compatibility guarantee
Compatibility guarantee Wrong fit or not happy - we'll make it right, up to a whole year

Filter Description

If you want to protect your HVAC system from dust and dirt, this is the filter for you! Fiberglass panel filters are an inexpensive option that provide basic equipment protection and high airflow. Ordering filters online is very convenient. Purchase a case of fiberglass filters and we will deliver them to your door quickly!
Engineered for sturdy, economical performance and ease of use
Compression-resistant fiberglass media has high dust-holding capacity
Replace every 30 days under normal use
Made with pride in the USA
100% free returns on all filters

$63.99

$79.99
Code DF20 · Save 20%
$5.33 per filter
Code DF20 · Save 20%
SAVE 0% 12-pack

Pack Size

In Stock, Ships onTuesday, Sep. 29th
You're $70.00 away from free shipping! Buy this and you're only from free shipping! Buy this and your order ships free!

Orders over $70 ship free. $5.99 otherwise.

Your Order Ships Free!

Compatibility guarantee

Wrong fit, leak, or just doesn’t work? We’ll send the right one. Free return shipping for all orders.

365-day satisfaction

Not happy? Send it back any time in the first year — we’ll make it right. Yes, even an open pack you’ve been running for months.

No-hassle returns

No restocking fees, no return-merch authorization mazes — just start a return and our helpful Customer Experience team will assist.

Filter Maintenance

Is it time to change your Filter?

Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

If someone in your home has asthma or allergies change your filter every

6 Weeks

to ensure indoor air quality is at its best.

If you have pets change your filter every

2 Months

to avoid shedding and odor buildup.

If you have young children change your filter every

2–3 Months

as having clean air is even more important with children in your home.

Filter Specifications

What does this filter remove?

Filtration capabilities
Nominal Size
18 × 18 × 1"
Actual Size
17 ¾ × 17 ¾ × ⅞"
Filter Media
Compression resistant double skinned fiberglass media
Frame
Moisture resistant chipboard
Max Temperature
150F (65C) continuous service
Max Humidity
Resistant to 100% R.H.

Performance Testing

About This Product

Is this the right air filter for you?

If you want to protect your HVAC system from dust and dirt, this is the filter for you!  Fiberglass panel filters are an inexpensive option that provide basic equipment protection and high airflow.  Ordering filters online is very convenient.  Purchase a case of fiberglass filters and we will deliver them to your door quickly!

  • Engineered for sturdy, economical performance and ease of use
  • Compression-resistant fiberglass media has high dust-holding capacity
  • Replace every 30 days under normal use
  • Made with pride in the USA
  • 100% free returns on all filters

Customer Reviews

4.1 4.1 out of 5 stars
14 verified reviews
5★
(10)
4★
(0)
3★
(2)
2★
(0)
1★
(2)
4
4.1 / 5 (14)
customerj.j. B. 656 days ago
5
very good for the hallway filter
Randy W. 760 days ago
5
Perfect fit.
Rebecca 856 days ago
5
Very pleased to finally find these filters and didn't have to pay a small fortune for them!
Rita 1127 days ago
5
Just what I needed. Size is hard to find.
patricia c. 1222 days ago
5
I think the A/C is working less hard because I switched to fiberglass from pleated. And the pleated didn't help all that much to reduce allergens, so if fiberglass doesn't either, it's OK. I just wanted the A/C to have an easier time. This company is super, great shipping.
Emily Y. 1438 days ago
5
Easy to order and delivered quickly.
D S. 1917 days ago
5
Easy to find a hard to find product. Good price.
james m. 1919 days ago
5
WAS HARD TO FINE IN MOST STORES GOOD SHIPPING TIME
Debbie Z. 2023 days ago
5
Quite happy with the price
Elizabeth T. 2511 days ago
5
Good quality good price fast delivery! ?
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