Based on 394 reviews
Never Buy Air Conditioner Filter Again

We purchased the Never Buy Another Filter for our AC unit. The cardboard filters would get sucked out of the filter frame and leave air gaps. The gaps allow dirt into the AC coil. The new filter fits great, no gaps and does not get sucked into the air box. Results is less dust getting on the AC coils. That means more efficient AC Unit.

Custom 1 INCH Silver
Rebecca Doyle
Too soon to tell

It has only been installed a week. Cannot possibly evaluate at this time

quality looks good

I haven't installed it, but it looks good and I am happy to know I will not spend money a filter again :D

Bend it

True to form, the filter was flexible as advertised.

Awesome, but…

The filter is awesome, but arrived punctured and bent by UPS. After sending pictures of the damaged filter and shipping label, another filter was promptly mailed out and I hope it arrives undamaged.

Thomas Marciano
Perfect fit

Ordered a filter 17.25x23.25. Fit right in.

Geothermal Filter

Delivered a quality filter made to exacting standards

The best filter I ever bought.Fits perfect.

Air filter

They are awesome thanks for getting them to me

SILVER (1 INCH THICK) - The Economical Washable, Permanent, Electrostatic A/C Furnace Filter


This is my second ECO-FLEX filter - I have a different system now . The other one was perfect and lasted me for more than the 10 years I needed it for. Saved me a ton of $$. Easy to maintain. Highly recommend!!!!!

a little pricey, but good quality, good service

filters arrived earlier than expected and are working fine - there are similar cheaper items out there, but the quality of the product is good so far and the service was great

Great product

I'm so pleased n very satisfied with this filter, its everything that i was expecting , thank u so much another satisfied customer .

Permanent filter that is easier to clean than most.

The filter is easier to clean because the filter retainer is a wider mesh.

Great filter

I purchased this filter for the first time for our geothermal system. We are very happy with it’s operation and look forward to buying no more filters.

Great filter

This is the only filter that has fit in my geothermal unit. I had to rely on cutting the cheap "cut to fit" filters. My unit must have a strange size as I looked everywhere before doing my research on google, and various searches. That led me to Never Buy Another At first I was worried since I ordered the filter and did not hear back for a while, and sent follow up emails, but you all assured me it was just a back order issue. It finally came and I was excited, but worried it might not fit (due to my own measuring). It FITS LIKE A GLOVE AND I LOVE IT! Please don't stop what you are doing. This is the only way I could get a filter that fits my HydroTemp Geothermal unit.

Came as ordered

The filter appears sturdy. Being able to wash it will
Help keep wasted filters entering landfills

PLATINUM (1 INCH THICK) - The ULTIMATE Washable, Permanent, Electrostatic A/C Furnace Filter

Seems to work really well. You can hear the improved air flow. We will see how well they clean and filter in time

Custom 1 INCH Silver
David Noonan
Bery satisfied. Has the ingredients and proper layers to provide enough of a small static charge ...

Sign of a good filter is the need to wash it often. Hope that is the case.

Bought wrong size….

I bought wrong size… can’t use $60 down the drain

Happy with purchase

The two filters I ordered fit perfectly and I am looking forward to see how long they will last and work well.

So far so good

Have had my washable filter for my Water Furnace geothermal system for about a month now. It is a great fit and seems to be doing the job. I have not had to wash it yet, so I cannot comment on that aspect of it, but it would seem that it is sturdy enough to stand up to the recommended washing procedure. The actual purchase was delayed due to supply issues, but customer service is top notch.

It seems to be working well

I haven’t had a chance to clean it yet so I don’t know how easy it is. But it makes a metallic whistling noise which I don’t enjoy.


Just what I was looking for! Every household needs this! Best thing ever!