Cell-Max™ media is designed for the treatment of high levels of H2S in Bio-Scrubbers® (biotrickling filters). It is rigid and acid resistant, therefore eliminating compaction or degradation while consistently achieving specified H2S removal rates.



Cell-Max™ media is an engineered, acid resistant, inorganic substrate designed to be highly porous with uneven shapes thus providing a balanced combination of small pores and large spaces.



Cell-Max™-1 media measures ⅜″-1″ in size and is a great fit for automated irrigation systems. Open and interconnected pores guarantee fast drainage and high capillary action, which is key for the treatment of high levels of H2S in Bio-Scrubbers®.



Cell-Max™-2 media measures 1/16″–7/16″ in size, allowing for fast drainage and extreme aeration of blends. These stones can be blended into any soil to increase aeration and drainage and eliminate compaction in hydroponic applications.

Cell-Max Close Up

Details and Specifications

An extremely lightweight, chemically resistant substrate made in the USA from 100% recycled material, Cell-Max™ maximizes surface area and serves as an integral part of the ecosystem for acid-thiobacillus bacteria growth.

Bulk Density (Dry): 15.5 lbs/ft3

Typical EBRT: 20–40 sec

Face Velocity: 5–15 fpm

Cell-Max bagged for shipment

Media Selection and Design Support

To utilize biological organisms and mitigate wastewater odors, it is necessary to understand two basic biochemical processes—autotrophic and heterotrophic, and their opposing requirements and ecosystems.

Autotrophic bacteria consume inorganic compounds as an energy source and receives carbon from carbon dioxide. Heterotrophic biological organisms must obtain both energy and carbon from the organic food they consume. GES Biotek is pleased to offer site-specific media selection and design support to create the ideal green environment for your application.

Case Studies

Check out what GES media has done for these installations.

Bio-Scrubber towers

Bio-Scrubber® Tower System, Stockton, CA


Decontamination and remediation was required to restore this two-tower system with new Cell-Max™ media, screen, and support system.

Enhanced Cell-Max installed at Eastern Municipal Water District, San Jacinto, CA

Eastern Municipal Water District, San Jacinto, CA

Enhanced Cell-Max™, Crater-Max®

GES Biotek installed a dual-media ecosystem to properly distribute the foul air and remove all complex odors and VOCs.

sprinkler bed

Monte Verdi WWTP, Clovis, CA

Fiber-Max™, Crater-Max®

GES Biotek supplied and installed filtration media and components for the plant's new concrete biofilter.

Additional Products

Enhanced Cell-Max

Enhanced Cell-Max™

All of the benefits of high-performance engineered biofilter media, but at a quarter of the weight.



Specifically engineered and processed for chemical resistance, size, and optimum surface area for H2S removal.



A proprietary blend of organic materials for the removal of complex odors and VOCs.

GES Nutrients

GES 1587 Super Nutrients

Enhance the growth of acidithiobacillus thiooxidans and ferroxidans microorganisms in a biological scrubber ecosystem.