The First - The Original!

Eljen GSF

Geotextile Sand Filter System

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Mantis M5

The High Performance

Wastewater System

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Mantis 536-8

Connecticut's Premier

Wastewater System

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Eljen Corporation

GSF & Mantis

Homeowner's Information

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About Eljen

Established in 1970, Eljen Corporation created the world’s first prefabricated drainage system for foundation drainage and erosion control applications. In the mid-1980s, we introduced our Geotextile Sand Filter products for the passive advanced treatment of onsite wastewater in both residential and commercial applications. Today, Eljen is a global leader in providing innovative products and solutions for protecting our environment and public health. 

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Recent News

May 23, 2017

Eljen B43 system installed at a seasonal, lakeside home in central Massachusetts
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May 23, 2017

The Eljen factory and offices will be closed Memorial Day and July 3-4, 2017.
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