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, 2016

Reminder: The Eljen factory purchase and pickup option will end on June 1, 2016. After this date, simply call one of the Blake or Target locations and schedule your delivery to any location in Connecticut.
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May 20, 2016

Eljen GSF system allows Lake Michigan seasonal home to be converted to full-time residence in Wisconsin and ending the need for pump and haul.
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