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Item #:
19643889
Filterbuy 17.5x21x5 Air Filter MERV 8 Dust Defense 1-Pack, Pleated HVAC AC Furnace Air Filters Replacement for Rheem, Ruud, and Protech Actual Size:
99% of respondents would recommend this to a friend
Item #:
19643889
XAF 50363
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Friday, September 18
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We offer premium features that provide an enhanced filtration experience via a pleated, electrostatic design that captures more particles and a reinforced beverage board frame that withstands extreme temperatures.
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What Stands Out
Custom Fit
Designed to fit Rheem, Ruud, and Protech systems perfectly, ensuring optimal performance and easy replacement without hassle.
MERV 8 Rating
Effectively captures dust, pollen, and pet dander, improving indoor air quality while allowing adequate airflow for HVAC efficiency.
Pleated Design
Enhances filtration surface area, providing longer-lasting performance and reducing the frequency of filter changes for convenience.
Product Details
| Brand | Filterbuy |
| Material | Aluminum, Plastic, Polypropylene |
| Product Dimensions (L x W x H) | 20.63"L x 17.13"W x 4.38"Th (52.4 x 43.5 x 11.1 cm) |
| MERV Rating | 8.00 |
| Compatible Devices | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Item Weight | 3.75 Pounds (1.7 kg) |
| UPC | 717267214759 |
| Air Filter Construction | Pleated |
| Number of Items | 1 |
| Manufacturer | Filterbuy |
| Country of Origin | This item will be import from US |
| Date First Available | April 11, 2021 |
Who Should Buy?
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Homeowners
Ideal for homeowners seeking to improve indoor air quality and reduce dust accumulation in HVAC systems.
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Allergy Sufferers
Beneficial for individuals with allergies, helping to trap airborne particulates and allergens effectively.
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Regular Maintenance
Perfect for those who follow regular HVAC maintenance schedules to ensure optimal airflow and filter performance.
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High Efficiency Needs
Not suitable for users requiring high-efficiency filters for advanced air purification beyond MERV 8 rating.
Product Description
Filterbuy 17.5x21x5 Air Filter MERV 8 Dust Defense 1-Pack, Pleated HVAC AC Furnace Air Filters Replacement for Rheem, Ruud, and Protech Actual Size: 17.13 x 20.63 x 4.38 Inches
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the MERV rating of the Filterbuy 17.5x21x5 Air Filter?
Answer: The Filterbuy 17.5x21x5 Air Filter has a MERV 8 rating. This rating indicates that the filter can effectively capture a variety of airborne particles, including dust, pollen, and pet dander, providing a healthier indoor environment. MERV 8 filters are designed to improve air quality while still allowing for good airflow, which prevents strain on your HVAC system. They are an excellent choice for homes with pets or for allergy sufferers. -
Question:
What does the size 17.5x21x5 mean in air filters?
Answer: The dimensions 17.5x21x5 refer to the filter's width, height, and depth, respectively. Specifically, this means the filter measures 17.5 inches in width, 21 inches in height, and 5 inches in depth. It is crucial to select an air filter that matches your HVAC system's specifications to ensure optimal performance and air quality. Using the correct size also helps to avoid issues like air leaks or restricted airflow, enhancing the efficiency of your heating and cooling system. -
Question:
Can I use this filter in different HVAC systems?
Answer: Yes, the Filterbuy 17.5x21x5 Air Filter is designed to fit various HVAC systems, particularly models by Rheem, Ruud, and Protech. However, it’s essential to check your system's compatibility or consult the user manual to confirm that this size and MERV rating will work effectively. Using the appropriate filter type can significantly impact your HVAC's operating efficiency and help prolong its lifespan. -
Question:
How often should I change my air filter?
Answer: Typically, it is recommended to replace your air filter every 1 to 3 months, depending on your usage and environmental conditions. Factors such as having pets, high levels of dust, and heavy usage of the HVAC system might necessitate more frequent changes. Regularly changing the filter helps maintain good air quality and efficient airflow, reducing energy costs, and extending the life of your HVAC system. -
Question:
What kind of contaminants does the MERV 8 filter capture?
Answer: The MERV 8 Filterbuy air filter captures a wide range of contaminants, including common allergens like dust mites, pet dander, mold spores, and pollen. It can also trap larger particles such as lint and dust, making it an effective choice for improving indoor air quality. By filtering out these pollutants, it helps create a healthier living environment, especially beneficial for allergy sufferers or those with respiratory conditions. -
Question:
Is the Filterbuy Air Filter environmentally friendly?
Answer: Yes, Filterbuy takes environmental considerations into account in their manufacturing process, helping to reduce the overall carbon footprint of their products. The materials used in the MERV 8 Dust Defense models are designed to be more efficient in capturing particles, which can result in less need for maintenance and longer-lasting performance. Furthermore, choosing high-efficiency air filters contributes to improved energy efficiency in HVAC systems, which can have a positive environmental impact. -
Question:
Are these air filters washable or reusable?
Answer: No, the Filterbuy 17.5x21x5 Air Filters are not washable or reusable. They are designed for single-use replacement, ensuring that you get optimal air quality and filtration performance. Using a disposable filter helps maintain the brunt of contaminants captured without compromising the efficiency of your HVAC system. It’s a straightforward solution for ensuring clean air circulation without the hassle of cleaning and maintaining a washable filter. -
Question:
Can this filter help reduce odors in my home?
Answer: While the Filterbuy MERV 8 Air Filter effectively captures dust and allergens, its primary function is not odor elimination. However, by improving airflow and trapping various airborne particles, it can indirectly help to reduce musty smells associated with accumulated dust and allergens. For those particularly concerned with odors, consider pairing this filter with air purification systems or specific odor-eliminating solutions. -
Question:
What are the benefits of using pleated air filters?
Answer: Pleated air filters, like the Filterbuy 17.5x21x5, offer several advantages over standard flat filters. Their increased surface area allows them to capture more particles while maintaining good airflow, which enhances overall HVAC performance. Additionally, pleated filters can often last longer than their flat counterparts, leading to fewer replacements and improved efficiency, resulting in energy savings over time. -
Question:
Where can I buy the Filterbuy 17.5x21x5 Air Filter in Equatorial Guinea?
Answer: You can buy the Filterbuy 17.5x21x5 Air Filter on Ubuy, a reliable online platform that offers a wide range of home improvement products. Ubuy provides convenient access to various sizes and types of air filters, ensuring you find the right fit for your HVAC system while enjoying a seamless shopping experience.
Filterbuy Furnace Filters Editorial Review
The Filterbuy 17.5x21x5 Air Filter MERV 8 Dust Defense has garnered overwhelmingly positive feedback from customers, who appreciate its effective filtration capabilities and good value for money. Many users have remarked that the filter arrives in pristine condition and matches the advertised dimensions accurately, ensuring a suitable fit for their HVAC systems. Customers have noted the quality and thickness of the filter, emphasizing its reliability in maintaining air cleanliness. The product's performance is satisfactory, with users confirming that it functions well in capturing dust and particulate matter, contributing to improved air quality in their homes. Additionally, the cost-effectiveness of the filter compared to competitors has also been highlighted, making it an attractive option for those looking to balance quality and expense. Some users did mention the fit could be slightly loose in their return air openings; however, this was easily rectified with the addition of a foam gasket. Furthermore, the responsiveness of the supplier and quick shipping times have positively impacted the overall customer experience, with many expressing a strong intention to recommend the product and supplier to others. Overall, the Filterbuy air filter has proven to be a commendable choice for Consumers seeking an efficient, well-Constructed, and budget-friendly air filtration solution. **
Customer Reviews & Ratings
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Pros
- Accurate sizing as advertised
- High quality and thickness
- Effective filtration performance
- Cost-effective compared to competitors
- Responsive supplier with quick shipping
Cons
- Potentially loose fit in some return air openings (easily remedied with a foam gasket)
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
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Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XAF 50363
Order now and get it around Friday, September 18
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Over 600 custom sizes available in various filtration ratings
- Pleated, electrostatic design captures more particles
- Reinforced beverage board frame withstands extreme temperatures
- Robust supply chain for quick delivery of custom sizes at no extra cost
- Helps provide clean indoor air for healthier living
- Industrial-grade beverage board frames outperform standard cardboard designs
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