Tired of spending money on disposable filters for your geothermal system? Do you have trouble finding your filter size?
You have come to the right place.
We started selling filters online about 10 years ago. Over the years our customers have noticed that our 5-Stage low-resistance air filter works extremely well in geothermal and high-efficiency units. Our experience has also enabled us to come up with a good variety of common and very rare geothermal filter sizes. Our goal is to provide ONE-STOP-SHOPPING for folks that are looking for a permanent, washable filter for their geothermal systems.