'/%3E%3C/svg%3E)
Hover image to zoom
18" x 24" x 1" Fiberglass Throw Away Replacement Filter
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$5.49 each
In Stock
Get 89 Tue, Jul 7
Order by today, receive Tuesday
MANUALS (1)
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days
Product Highlights
–
18" x 24" x 1"
Fiberglass
Description
–
Hart & Cooley 274180240 18" x 24" x 1" Fiberglass Throw Away Replacement Filter
A fiberglass "throw-away" HVAC replacement filter used in return-air filter locations to capture airborne dust and debris as part of routine system maintenance.
Key Features:
Compatibility & Applications:
Installation & Operation Notes:
Maintenance & Troubleshooting:
User Reviews & Q&A Summary:
A fiberglass "throw-away" HVAC replacement filter used in return-air filter locations to capture airborne dust and debris as part of routine system maintenance.
Key Features:
- Replacement filter made of fiberglass
- Size listed as 18" x 24" x 1"
- Hart & Cooley describes its Koch commercial/industrial disposable panels as economical air filters designed for light-to-medium duty air filtration applications
- Manufacturer describes progressively dense glass fibers (coarser on the air-entry side, tighter on the air-exit side) for depth loading and full media utilization, with fibers coated in a non-migrating adhesive
- Manufacturer describes a one-piece moisture-resistant craft board frame with an interlocking miter corner, and states no extra metal support is needed
- Manufacturer states a thermoplastic sealant bonds the media to the frame on upstream and downstream sides to help eliminate air bypass and add rigidity
Compatibility & Applications:
- Listed as an HVAC replacement filter in the stated size (18" x 24" x 1") for filter racks/grilles that accept this size
- Must only be used where the manufacturer specifies this exact part number: 274180240
Installation & Operation Notes:
- Installation can typically be performed by a qualified HVAC technician or a homeowner following the equipment's filter access instructions.
- Reference the HVAC unit's service/installation manual for the correct filter location and orientation.
- The provided sources do not specify airflow-direction markings or a replacement interval for this specific SKU; follow the equipment documentation and site conditions.
Maintenance & Troubleshooting:
- This is a routine maintenance item; replace when loaded/dirty or at the interval recommended by the equipment documentation.
- If the filter fit is loose and gets pulled or shifts during operation, verify the return grille/rack size and seating; some user feedback notes occasional fit variance that required shimming to prevent movement.
User Reviews & Q&A Summary:
- Common positives: reviewers frequently describe it as a simple, effective "light" fiberglass filter that's easy to swap (often described as slide out/slide in) and convenient for routine maintenance.
- Availability theme: multiple reviewers note it can be difficult to find this style/size locally and buy it here for consistent supply.
- Fitment theme: some reviewers report the actual sizing can be "off" enough to require minor adjustments (such as adding cardboard/tape) to prevent the filter from being pulled or shifting when the system runs.
- Use-case theme: at least one reviewer notes using these regularly in an HVAC maintenance program for business use.
Specs
–
| Product Type: | Replacement Filter |
|---|---|
| Size: | 18" x 24" x 1" |
| Material: | Fiberglass |
Contact
+
Happy Independence Day!
Our Customer Support will be closed today in honor of Independence Day. We will be back on Sunday to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
You May Also Need
Product Reviews
4.88 out of 16 reviews
100% would recommend this product
5 star
94%
4 star
0%
3 star
6%
2 star
0%
1 star
0%
Most Liked Positive Review
Couldn't buy this locally
Caught a video on how to get your HVAC and A/C to blow better and cooler, and aside from cleaning, the man said that these are the filters that hvacs were designed for, the new ones like 3m thick cloth ones, effect its ability to pull air properly, as you'll notice in your most distant vent from hvac.... I live in a very small town and no one here sells these... THANK YOU SUPPLY HOUSE 😊
VS
Most Liked Negative Review
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Good but size is not accurate
Filter itself works good for a light filter in the house return since we already have media filter in the air handler, but sizing is "off" - have to tape pieces of card board on the sides of the frame so it will fit properly so it doesn't get pulled up every time the A/C turns on. Was about a 1/2" off or so on each side from the size ordered.
Showing 1-10 of 16 reviews
These work for our business.
We use these daily in our HVAC maintenance program
Sanibel Dispatcher
Sanibel FL
11 months ago
Verified Buyer
Was this review helpful to you?
Great price and quality
I ordered the furnace filters for my new furnace. Just what I was looking for. I would definitely recommend this filter and supplier.
Dennis
Ocean Springs, MS
2 years ago
Verified Buyer
Was this review helpful to you?
Solid work
5/5
.
Tampa
3 years ago
Verified Buyer
Was this review helpful to you?
I would definitely buy this product again!
Just easy slide the old filter out and slide the new one in what could be
better than that.
Mike
North Kingstown, Rhode Island
3 years ago
Verified Buyer
Was this review helpful to you?
I would purchase the items again
Convenient ordering, timely delivery, reasonable price point.
John
Florida
4 years ago
Verified Buyer
Was this review helpful to you?
Replacement Part (A/C Filters)
I like these filters. They fit our grills perfectly. I especially like the way they were last shipped to me. They were placed inside larger boxes to keep the box that housed them from being bent and torn. Thanks! That was a great ideal. Pervious shipped filters came with busted boxes which likely happen in transit, but placing them inside the larger boxes was genius.
Dr. Solo
Mississippi
4 years ago
Verified Buyer
Was this review helpful to you?
I will buy here again
Great price, Fast delivery and just what I needed. Very Happy
Bill the builder
Punxsutawney, Pa
4 years ago
Verified Buyer
Was this review helpful to you?
Good product!
Good quality for a budget price
Dickiedo
Tampa bay Florids
4 years ago
Verified Buyer
Was this review helpful to you?
Supplyhouse is the best company
This product is good what I need for my type of system and I do not own a car so having Supplyhouse provide a great service to me makes me feel very grateful- Supplyhouse has always treated me in the very best way! Thank you all!
Kate
Amarillo, Texas
5 years ago
Verified Buyer
Was this review helpful to you?
Right Size
These fit better than others I have used. These 18×24 fits perfect. Others I had to force in
Dr. Solo
Mississippi
5 years ago
Verified Buyer
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy