Johnson Screens underdrain systems are designed specifically for optimized collection and distribution with direct retention of the filtering media.

Our underdrain systems are made of Vee-Wire® filtering media support profiles that offer fine slots to suit the selected filter media specifications and U-shaped perforated supports to allow flow control for both air and water.

Together We Are Stronger

Johnson Screens, together with the other Aqseptence Group brands Passavant, Geiger and Noggerath, supports the group’s division Water Processing Solutions.

Water Processing Solutions is a specialized equipment designer and manufacturer. As the market leader, Johnson Screens provide innovative, reliable solutions for water and wastewater treatment as well as for seawater intakes.

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GreenFil Activated Filtration Media

GreenFil Activated Filtration Media

Johnson Screens GreenFil activated glass filtration media is an inert, amorphous aluminosilicate (glass) manufactured by up-cycling post-consumer green and brown glass bottles. GreenFil is verified to at least double the performance of sand filters without the need for additional investments in infrastructure,

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Triton Underdrain™ System

Triton Underdrain™ System

Partner with a Global Service Provider

Our support doesn't end with your purchase. With locations in six continents, we apply our expertise from design to installation and start-up. Our field service specialists have been chosen in more than 100 countries and have accumulated over 25,000 hours of on-site work experience.

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