Silverback Drain Warden Stormwater Filter System

Drain Warden Stormwater Filter System

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Brand: Envirosmart

Stormwater drain filtration has now become and will continue to be a key to pro-actively playing a part in minimising the impact of pollutants reaching environmental habitats. Water runoff from all exposed surfaces risks pollutants entering our waterways. Outdoor parked vehicles, machinery, roads and driveways are all potential sources. For businesses with stormwater drains on-site, a Drain Warden is a practical, economic investment that requires no effort once installed other than a periodical inspection.

They are designed for Worksites, Industrial sites, Carparks, Marinas and Shopping Centres. 


  • Removes debris pollutants from stormwater 
  • Built-in overflow feature for extreme rainfall conditions 
  • Safe & easy to install 
  • Economical 
  • Variety of sizes available 
  • Custom options available 
  • Australian Made 

Here’s how the Drain Warden works

The Drain Warden sits suspended in the drain pit, held into place by the weight of the grate itself and Velcro retrieval tabs. 

Water entering the drain filters through the geotextile fabric and a highly absorbent polypropylene bilge sock. Solids, silt oil, hydrocarbons and trash are captured in the filter basin or bilge sock as water freely passes through. 


  • Drain Warden 600 600mm x 600mm - 300mm Basin
  • Drain Warden 900 900mm x 900mm - 450mm Basin
  • Drain Warden 1200 1200mm x 1200mm - 600mm Basin
  • Drain Warden 2400 2400mm x 1200mm - 600mm Basin