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Description
K&N HVAC Filter - 20 x 25 x 1Upgrade your HVAC system with a K&N Washable and Reusable Air Filter. Designed with your well being in mind, the MERV 11 rated high quality pleated synthetic filter media, helps ensure superior filtration and airflow. These filters strike a perfect balance of airflow and protection and are a great choice for most home environments. The superior dust holding capacity guarantees long lasting performance, providing you with clean and fresh air for years
Upgrade your HVAC system with a K&N Washable and Reusable Air Filter. Designed with your well-being in mind, the MERV 11 rated high-quality pleated synthetic filter media, helps ensure superior filtration and airflow. These filters strike a perfect balance of airflow and protection and are a great choice for most home environments. The superior dust holding capacity guarantees long-lasting performance, providing you with clean and fresh air for years to come. Like all K&N HVAC air filters, these durable filters are washable and reusable and guaranteed for the life of your HVAC unit. Say goodbye to the hassle of constantly purchasing new disposable filters. Say goodbye to the hassle of constantly purchasing new disposable filters -- simply wash and reinstall your K&N filter and enjoy years of use without compromising performance. By electing to use K&N’s reusable filter over a disposable, you are not only save money but are contributing to a happier, healthier planet.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 4
Great information!
Format: Paperback
This is a very well designed book with so much information. I wish there was a more detailed index in order to find what you need. In my book, the first index page was missing!
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Reviewed in the United States on October 31, 2025
★★★★★ 5
very helpful Rifing book
Format: Paperback
still learning to use this book as it is a wealth of information about Rife frequencies. I have GB4000 and SR4 equipment and this supplements the Universal frequency book that came with them. This book was recommended by folks in the online GB4000 Users group.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Great reference for RIFE devices
Format: Paperback
I've been using RIFE frequency sounds for addressing some problems. Now I got an affordable RIFE device that comes with tons of programmed setting, yet impossible to cover all. I like this books is very well organized and includes lots of good information that will allow me to program my own settings for specific needs. I do recommend it to any person interested in getting these frequencies on paper. Worth the investment.
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Reviewed in the United States on August 19, 2024
★★★★★ 5
Great book for frequency work
Format: Paperback, Format: Paperback
Wow, If you are into frequency work. This is a very informative reference guide, with lists of frequencies. 256 pages just like this.
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Reviewed in the United States on February 20, 2026
★★★★★ 5
Helpful, durable, and very thorough in the presentation of boundaries
Format: Spiral-bound
I love this for several reasons. I use it in my therapy practice with clients. There are different types of boundaries and examples and sometimes clients feel It’s not a very big topic, however, it is. You can use the book weekly with a client across many sessions. The book is well-made and you can use an erasable marker with it. The ink doesn’t come off just apply a little alcohol to a cloth. I fear this is also very durable.
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Reviewed in the United States on August 17, 2025