Filtration2026-01-28T10:09:18-05:00

Filtration Products

Discover GEI Works’ comprehensive stormwater management solutions, including Over and Under Grates, Drain Guards and Filters, Ditch Deck, and other BMP (Best Management Practice) Solutions. Our high-quality products are designed to effectively control runoff, filter pollutants, and protect water quality, ensuring compliance with environmental regulations and safeguarding natural resources.

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Over Grate Drain Covers

Over Grate Drain Covers are a cost-effective and user-friendly solution to protect drains from contaminants. Our patented design combines two filters and an internal support structure in a self-contained, low-profile unit. Compliant with local and federal stormwater regulations, these durable covers reduce pollutants entering waterways. Easy to install with just one person, they lie flat on top of drains. The materials are street-sweeper resistant, ensuring longer use life over non-woven geotextile overgrate options. Choose Over Grate Drain Covers for convenience, reliability, and environmental protection.

  • Stormwater Management
  • Construction Sites
  • Parking Lots and Roadways
  • Industrial Facilities
  • Commercial and Residential Properties
  • Typical sizing ranges from 18” to 60” square (custom options available)
  • Blocks a range of contaminants, including silt, sand and mid-sized debris
  • Dual-filter design made of robust filtration fabrics and a pervious grid
  • Sediment ridges around the perimeter promote settling of suspended particles
  • Overflow Port in the center of the filter allows for an increased flow rate preventing ponding
  • Does not require grate removal for installation and can be installed by one person

Under Grate Filter

Under Grate Filters are a discreet and high-performing solution that effectively prevents contaminants from entering drains and water systems. With our filtration technology, it captures sediment, debris, oils, and chemicals, ensuring excellent stormwater management. Durable, easy to install, and low maintenance, our Under Grate Filter is the ideal choice for protecting water quality and meeting environmental standards. Choose reliability and environmental protection with our Under Grate Filter.

  • Effectively captures sediment, debris, oils, chemicals, and other contaminants, ensuring superior protection for drains and water system
  • The filter is designed to be installed beneath the grate, offering a discreet and unobtrusive solution that seamlessly integrates with existing drainage systems
  • Durable construction that ensures long-lasting performance and reliability
  • Suitable for a wide range of applications and preserves water quality
  • Typical sizing ranges from 18” to 60” square (custom options available)
  • Blocks a range of contaminants, including silt, sand and mid-sized debris
  • Dual-filter design made of robust filtration fabrics and a pervious grid
  • Sediment ridges around the perimeter promote settling of suspended particles
  • Overflow Port in the center of the filter allows for an increased flow rate preventing ponding
  • Does not require grate removal for installation and can be installed by one person

Geotextiles

Engineered for durability and performance, our line of Geotextiles provides essential soil management solutions for marine and civil construction. Whether your project requires the high-tensile reinforcement of Woven fabrics or the superior filtration and cushioning properties of Non-Woven polypropylene for drainage and road repair, we have the material to match the spec. All our fabrics are designed for long-term resistance to UV degradation, rot, and biological breakdown.

CUSTOM SOURCING AVAILABLE While the products listed represent our most common DOT-approved inventory, we are a full-service supplier. If your project requires a specific weight, permeability, or material spec not listed here, call us. We can source exactly what you need. Please contact us for any other requirements for your project.

  • Rip Rap
  • Separation of aggregates
  • Drainage areas
  • Road Pavement
  • Cushioning
  • Stabilization
  • Cushioning
  • Landscaping
  • Liner Underlay
  • Sediment Control
  • Underlayment
  • Erosion Protection
  • Asphalt Overlay
Examples Include:

Woven: 150#, 200#, 315#

Non Woven: 4, 6, 8, 10, 12, 16 oz.

Please call for anything specific you may not see listed here. Examples include Mirafi, Tensar Geogrid, etc.

Staked Turbidity Barrier

GEI Works staked turbidity barrier is an excellent rugged option for handling silt control. It is made from marine-grade 350 lbs. high strength PVC. The yellow silt fence redirects water flow and stops the spread of sediment on disturbed land areas, such as construction sites. It is DOT compliant for sediment and erosion control.

Other BMP Solutions

GEI Works can provide various solutions for Best Management Practice solutions for stormwater management.

GEI Works can provide solutions to assist with Erosion Control with natural fiber products such as gutter logs, coir logs, wattles, erosion blankets to help filter runoff and prevent soil erosion. These products assist with keeping soil from eroding on hillsides, shorelines and provide perimeter protection in some construction sites.

  • Drawing Guards and Filters
  • Drain Covers / Seals
  • Drain Berms
  • Gutter Logs
  • Gravel/Sand Bags
  • Over/Under Grate Filters
  • Inlet Guards
  • Pipe Filters
  • Oil and Debris Blockers or Filters
  • Hydrocarbon, Heavy Metals Guards
  • Downspout Guards
  • Natural Fiber Logs and Wattles
  • Erosion Control Blankets (ECB’s)
  • Dewatering Socks, Bags, Tubes
  • Turbidity Curtains
  • Debris Containment Boom
  • Secondary Containment Berms, Basins and Trays
  • Spill Trays and Spill Kits
  • Absorbent Spill Solutions
  • Liners
  • Flood Barrier Tubes

Related Products

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Absorbants

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