Founded by Horst Lenser in 1969, LENSER Filtration GmbH makes precision-fit filter elements and related filtration solutions for solid-liquid separation. The Senden, Germany, company invented the membrane filter element in 1973 and now operates worldwide as part of the ANDRITZ Group, with 400 employees serving customers in more than 150 countries. Its work combines a broad product base with hands-on process advice and testing to match filtration equipment closely to each application.