Our OTG™ filters are open-top, deep-media, downflow gravity filters that provide a flexible solution where large flows must be treated economically. OTG™ filters easily accommodate wide variations in headloss and deep, multi-media filter beds.

Virtually any type of combined air/water backwash process can be used, making the OTG™ filter an ideal selection for filtration of poorly conditioned feed streams or biological process effluents subject to upset. Single-cell filters require an external backwash supply, but multi-filter installations are often designed with adequate capacity and integrated control systems for self-backwashing and continuous filtration.

OTG™ filters are available in circular and rectangular steel tank designs, and in concrete basins.

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