The Trench Drain Filter is configured to fit within most fat bottomed trench drain inlets. The simple design traps sediment, trash and debris within the trench while allowing runoff water to pass through the filter and exit through the storm drain system. Trench drain filters are comprised of one or more perforated metal square tubes called debris shields and a Bypass hood assembly. The 4’ long debris shield is comprised of a perforated stainless steel screen which keeps coarse material out of the filter and a replaceable filter media product for treating the water. The unique system can accept one of two treatment media types: Oil/Grease, and Phosphates/Nutrients.