Grate Inlet Filter


Grate Inlet Filter for catch basins is a filter system designed to capture fine to coarse sediments, floatable trash, debris, and hydrocarbons conveyed in stormwater runoff. It is constructed of 100% high-grade stainless steel. The Grate Inlet Filter is also available in four different model types: Multi-Level Screening (MLS), the Kraken Type media filter, the Media Filter model (using various types of filter media material), and the Full Capture model which provides 100% removal of trash and debris.

BMPs Advantages

  • 8 Year Warranty
  • Custom Sizes Available
  • Fits in Shallow Catch Basins
  • No Nets or Geofabrics
  • 15+ User Life
  • Meets LEED Requirements
  • No Replacement Costs (typical of other fabric filters)


The Grate Inlet Filter has been successfully used on numerous new construction and retrofit projects. The system’s superior durability and customization make it ideal for a wide range of stormwater applications:

  • Parking Lots
  • Roadways
  • Bioswale Bypass Structures

System Operation

The Bio Clean Grate Inlet Filter, and the Grate Media Filter – Kraken Type and the Grate Inlet Multi Level Screening Filter are advanced level filtration devices. Each is highly durable and long lasting filters designed to catch large amounts of sediment, debris, and enhanced models further increase removal efficiencies.

Grate Inlet Media Filter - Kraken Type Performance

Removal of Fine TSS 85%
Removal of Total Phosphorus 72%
Removal of Copper 52%
Removal of Zinc 58%
Removal of Oils & Grease 81%
Removal of Fecal Coliform 60%

Grate Inlet Media Filter - Full Trash Capture Type Performance

Removal of Trash and Debris 100%

Grate Inlet Media Filter - Multi-Level Screening Type Performance

Removal of Sediments 80%
Removal of Trash 100%
Removal of Foliage 100%

Maintenance On The Grate Inlet Filter

Maintenance on this Grate Inlet Filter can either be done with a shovel, a small shop vac or a standard vacuum truck. Since Bio Clean filters contain no fabrics or netting there is no chance of accidental tearing or breakage during cleaning.

1. Remove Grates. Access Filter.
2. Remove Skimmer Tray. Vacuum Debris.

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3. Replace Skimmer Tray & Grates.