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The FilterBox is a non-mechanical device that is installed in catch basins to capture the sediment in stormwater.


Unlike traditional silt socks or waddles, HydroBlox does not clog, is easier to install and is reusable, thus saving you time and money, and providing the assurance that you are complying with the EPA’s guidelines. DuraFence is simple to handle and install, yet strong enough to capture debris and accompanying silt from stormwater.


  • Dimensions: 6” wide x 18” x 24' high

  • Weight: 30 lbs. (approx.)

  • Support 102.41 tons/sq. ft. of compression

  • Drainage capacity of more than 0.810 gal/sq. ft. /sec.

  • Environmentally friendly, made of 100% recycled materials

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