© 2023 by Ken White Construction Marketing

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The Eljen GSF Geotextile Sand Filter System is a cost-effective upgrade from other septic technologies.  Comprised of a proprietary two-stage Bio-Matt™ pre-treatment process, the GSF Modules apply a better-than-secondary aerobic effluent to the soil, increasing the soil's ability to accept the effluent.  The result is a superior treatment in a smaller absorption area.

Intended Use: 

  • Sites that require smaller systems due to lack of space

  • Cost-effective solution


  • Tested and Certifed by NSF to NSF Standard 40

  • Independent and third party testing shows the Eljen GSF treats to better than secondary treatment

  • Pretreats effluent with a two-stage Bio-Matt™ process

  • Greater long-term performance

  • Requires a much smaller installation area than traditional systems

  • Patented products and technology

  • No stone required

  • Lower site impact

  • Lightweight and easy to handle and install