Under Grate Filter | Long Lasting Storm Drain Protection

Taurus logo Hopper Under Grate Filter

Storm Drain Protection You Can Count On USA Made

stormwater sediment filter
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GEI Works' new Taurus Hopper Under Grate Filter fits securely beneath storm and catch basin grates for storm drain protection from trash, sediment, debris, mosquitos and flying insects. Street sweeper friendly, you'll be amazed with not only how easy this catch basin filter is to install, but with how much better and longer Taurus performs than the industry standard (known as "witch's hats") in filtering debris and controlling flying insects.

Use the Taurus Hopper under grate filter when:

  • There's a high volume of suspended solids, silt and sediment, trash, yard waste, and oil residue
  • Areas with heavy traffic
  • The drain is in a location that is subject to "wheel turns" by traffic

Taurus storm drain filters are recommended stormwater BMPs, and can help keep your site in compliance with local and federal stormwater regulations as part of a SWPPP. Taurus storm drain and catch basin filters are made in the USA and are designed for durability and longevity.

Questions? We can help! Call us at +1-772-646-0597 or contact us!Request a Quote

Taurus Under-Grate Filter Advantages:


  • Installs quickly and securely sediment filter under grate
  • Street sweeper friendly
  • Low profile design
  • Heavy duty permeable fabric
  • Large hopper (collection area)
  • Folds flat for easy shipping and storage
  • Overflow ports to prevent pooling water
  • Custom sizes and options* available

See Also:

Standard Sizes* of Taurus Under-Grate Filters Available On Our Webstore:






Need a different size? We're happy to help!
Call us for custom sizes

+1-772-646-0597 or contact us

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Storm Drain Protection - How it Works:


storm drain filter

The Taurus Hopper fits under the storm drain or catch basin grate, preventing trash and debris from entering waterways and filtering sediment before it enters the storm water system. The hopper (collection area) is larger than traditional comparable products, accommodating large amounts of silt, trash, debris and sand.


This rugged design catches debris while the heavy under grate filterduty filtration fabric allows water to flow steadily through. Built-in overflow ports allow for an increased flow rate to avoid flooding during heavy rain events. (To increase longevity and performance, we recommend regularly emptying the storm drain filter's hopper.)

Nylon webbing straps are featured for ultimate support and can withstand thousands of pounds of pressure. The (optional) high visibility design makes it easy to quickly identify which storm drains contain the under grate filter. Additionally, Taurus products can prevent mosquits from exiting storm drains for flying insect control.

For maintenance: 1) Lift the grate using a lifting strap or other approved safety device. 2) Remove the filter from the grate. 3) Empty the filter hopper and dispose of the contents. 4) Reattach the filter to the grate per Installation Instructions. 4) Use lifting strap or other approved safety device to replace the grate in the drain opening.

Request a Quote

If you have questions about any of our products, give us a call at +1-772-646-0597 or request a price quote.

Looking for additional storm drain filters? GEI Works' line of Taurus filtration products provide significant cost savings due to their extended lifespan.
See our other Taurus stormwater BMPs:

Still not sure which storm drain protection product you need? We can help! Call our team at +1-772-646-0597, or request a quote.

See federal NPDES regulations and information.