Eljen Corporation is a leader in Environmental Solutions and the Onsite Wastewater Industry. Founder and retired World War II veteran Joe Glasser introduced the world’s first pre-fabricated geotextile drainage systems to the market in 1970. During this time the company specialized in foundation drainage and erosion control applications. In 1982, Eljen Corporation introduced the ground-breaking passive wastewater treatment and dispersal technology to the market. Since the introduction of the Geotextile Sand Filter (GSF), Eljen continues to develop passive treatment and dispersal technology. Today, Eljen is a global leader in providing innovative products and solutions for protecting our environment and public health. Eljen is proud to be the top choice for your small lot, waterfront and high restrictive layer applications. Homeowners and businesses choose Eljen GSF not only due to our 30 years of experience in passive wastewater treatment but also due to our reliability and commitment to the industry. In 2019, Eljen was awarded the Platinum Hire Vets Medallion Award by the U.S. Department of Labor, in recognition of verified efforts to recruit, employ, and retain veterans. From the four corners of the United States to the vast expanses of Eastern Europe and beyond; Eljen Corporation is your time tested partner.