Nonwoven Catch Basin Insert


Product Options:

  • Non-Woven Catch Basin Insert

Product Description

Non-woven catch basin inserts are stormwater filtration devices made from non-woven geotextile fabrics designed to fit inside standard catch basins. They are often referred to as “witches hats” due to their conical shape.

Features & Benefits

Features:

  • Non-woven geotextile construction – Made from durable, high-flow fabrics offering excellent filtration and strength.
  • Drop-in design – Fits easily beneath standard storm drain grates without the need for tools or modifications.
  • Fine filtration – Captures fine particles with an Apparent Opening Size (AOS) typically between 70–80 sieve.
  • Overflow protection – Designed to prevent bypass and ensure controlled flow even during heavy rainfall.
  • Custom sizing – Available in standard and custom dimensions to fit a variety of inlet types.

Benefits:

  • Improves water quality – Effectively traps sediment, trash, and pollutants before they enter the stormwater system.
  • Supports compliance – Helps meet NPDES and MS4 stormwater permit requirements.
  • Quick installation – Saves time and labor on job sites with simple, tool-free setup.

Applications

  • Roadways
  • Residential development
  • Commercial development

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Nonwoven Catch Basin Insert