Over 500,000 Filters Sold

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Geothermal Custom Size Washable, Permanent, Electrostatic Air Filters

$149.99 USD

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Ships Within 2-3 Days

Stop throwing your money away. Our GEOTHERMAL permanent filters are designed to work with WaterFurnace, Bryant, Carrier, ClimateMaster, Bosch, Florida Heat Pump, GeoFinity & others. They feature minimal air resistance and extra strength to accommodate their large size. The pleated design allows for 30% more air flow to reduce resistance. The filter develops an electrostatic charge that acts like a dust and allergen magnet. These filters are drop-in replacements for the expensive disposable filters. No retro-fitting and no electricity needed. You will be impressed with the quality and performance of this great filter.

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I’ve had the air filter for a few weeks now, and it’s made a noticeable difference in my home’s air quality. I suffer from seasonal allergies, and since switching to this filter, I’ve experienced less sneezing and congestion indoors.

- C Lopez

Verified

I have some odd house filter openings and was concerned about the fit. Bought two filters and they fit perfectly. The cost was half the amount that I had seen advertised elsewhere. I am happy with them.

- L Wells

Verified

Really happy with my order. I'm tired of replacing disposable filters that don't fit well. NeverBuy has the perfect solution. Highly recommend!

- V Moulton

Verified

My filter arrived on time in a well made box so the filter is not damaged during shipping. The filter seems well constructed and fits perfectly. Air passes freely as not to strain the blower motor and easy to follow cleaning instructions are provided. So far so good!

- J Wilson

Verified

Had good experience with this company’s lesser level filters in another home in 2013. This new filter definitely reduces dust and the air-handler is much quieter. Highly recommended. Would purchase again.

- W Ziedman

Verified

I have been using my filter now for two weeks, and have noticed a difference in the air quality and coolness! My AC has been running more efficiently and the filter looks so much better than any previous filter I have purchased!

- J Billington

Verified

When I compared the price for disposable filters vs washable renewable filters it’s was a no brainer to buy a reusable filter. Never buy another filter came through for me. I recommend them to my friends and family

- S Mcmanus

Verified

I purchased one custom filter which has been great so I purchased another so when I clean one I just put the filter in.

- G Dalton

Verified

Great replacement filter for my furnace, custom made for my needs, high quality, a must have !!

- G Barbu

Verified

The accumulation of dust, my main concern, is now controllable, that is why I ordered a back-up filter.

- J Goudey

Verified

We live in the desert and this filter is the answer we have been looking for. Easy to clean and so far as filtered much more of the desert dust. The dust is red here so we can tell..

- B Hill

Verified

I’ve had a couple now for a good 5 years. Wash out with shower head and let dry and put back in. My daughter bought herself a house so I bought her one for her house. Share the glory.

- R Webber

Verified

Works great. We had one in our former home that lasted 20 years. Built new home and wanted the same filter. We like being able to clean it ourselves and not having to replace it.

- G Nedrow

Verified

I was tired changing the furnace filter until I found this filter that a friend was using. Much better than the 3M filters I was using.

- D Meinsen

Verified

These custom sized filters are awesome. I no longer have to go shopping just to find one that will have to be cut to fit. I ordered 2 so that I can replace the first while I wash and dry it for reuse.

- E Basbas

Verified

Perfect fit. Installed it to replace an old filter. Very good quality filter. Air is noticeably cleaner and flows better. The service was excellent!

- S Burlison

Verified

Very pleased with the quality of my gold filter. The measurements are exact, no sharp edges and the overall finish is AAA+.

- G Carrington

Verified

I have had the MaxMerv9 in use for 5 years. It has worked great! I wash it once a month and it cleans up great. I will never need to buy another filter.

- L Wilner

Verified

Perfect fit and very well made! Also this is just my opinion but i feel like the air flow is a lot better i’m going based on the movement of my curtains their seems to be more airflow! Don’t hesitate to buy one of these permanent filters! Why spend 200-300 a year on cheap overseas filters!

- M Cantreras

Verified

I love my new filter I'll never have to buy another oneagain I'm so happy that I bought it and I hope everyone gets one

- S Terry

Verified

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Geothermal Custom Size Washable, Permanent, Electrostatic Air Filters