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Arrives in days, retrofits in seconds, and fixes EMI problems forever.  

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EESeal Manufacturing is ISO 9001 & AS9100 Certified

Quell is the maker of the EESeal® FilterSeals brand of EMI Filters, Retrofit Inserts, and Transient Suppressors. EESeal® FilterSeal EMI Filter Inserts are a simple, low-weight, small-size, instant-install, reliable alternative to filter connectors, filter adapters, and other types of interface and signal filters. You can easily retrofit or add an EESeal high-performance EMI Filter Insert to your connector in seconds, even in the field.

Request A Free SampleEESeal?? FilterSeals Brand of EMI Filters, Retrofit Inserts, and Transient Suppressors    EESeal?? FilterSeals Brand of EMI Filters, Retrofit Inserts, and Transient Suppressors

At this site you can learn more about our revolutionary product in the following sections:


Everything about the EESeal® EMI Filter Inserts, from their silicone construction to their 30 second installation into YOUR connectors. Rapid Prototyping Too!


Photos and samples of several EESeal® FilterSeal EMI Retrofit Filter Inserts in various connectors


See firsthand how quick and easy it is to install an EESeal® FilterSeal EMI Filter Insert into your connector


Independent testing results, including Attenuation and Load Voltage Protection results


Get an EESeal® EMI Retrofit Filter Insert in your connector in a matter of days

Reaching Us

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Download a short briefing on the EESeal® FilterSeal EMI Retrofit Filter Insert & Adapter.

RoHS Compliant EESeal® FilterSeals now available. Please contact us for more information.

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©2002-2013 Quell Corporation. All images are property of Quell Corporation.
EESeal® is a Registered Trademark.  US Patents 6,613,979 & 5,686,697, Canadian Patent No. 2,209,660, and European Patent No. 0 801 815.

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