Your go to partner


Celebrating 50 Years

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Simplifying Treatment

Eljen GSF

Geotextile Sand Filter System

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Mantis 536-8 & DW

Connecticut's Premier

Wastewater Systems

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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 10, 2021

Our manufacturing facility will be closed May 13 and 14th.
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August 11, 2020

The GSF is used for a repair system in Indiana with limited usable area.
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