Flexstorm® CATCH-IT® Lite Filters


Specify with confidence
State DOTs and Municipalities across the country now have a universal structural BMP to address the issue of storm sewer inlet protection.

SKU: Flex4 Category: Tag:


FLEXSTORM CATCH-IT Inlet Filters—the temporary and reusable solution.

The FLEXSTORM CATCH-IT system is the preferred choice for temporary inlet protection and storm water runoff control. FLEXSTORM CATCH-IT Inlet Filters will fit any drainage structure and are equipped with high efficiency filter bags. Whether you’re the specifier or the user, it’s clear to see how FLEXSTORM CATCH-IT Inlet Filters outperform the competition.


  • DOT Road Construction
  • Commercial Parking Lots
  • Industrial Maintenance
  • Residential Developments


  • Configurable: steel frames configured and guaranteed to fit ANY storm drainage structure
  • Adjustable: although shipped to fit your inlet, rectangular framing may be field adjusted in 1/2” increments if necessary
  • Reusable: galvanized framing will last year after year in harsh conditions, while geotextile filter bags are easily replaced after several years of use
  • Effective: works below grade; overflow feature allows streets to drain with full bag; third party testing results of the FX filter bag show 82%
  • Affordable: low per-unit cost; installs in seconds; easily maintained with Universal Removal Tool (no machinery required)


  • Reduce jobsite flooding and keep projects running
  • Minimize residential complaints with cleaner, dryer streets during all construction phases
  • Prevent hazardous road icing conditions by eliminating ponding at curb inlets
  • Significantly reduce cleanup costs
  • Prevent siltation and pollution of rivers, lakes, and ponds
  • Helps prevent fines; NPDES PHASE II Compliant
  • Lowest cost alternative for the highest level of Inlet Protection

Additional information

Size Options

12” x 12" precast catch, 16 x 16" precast catch, 18” x 18" precast catch, 24” x 24" precast catch, 36” x 18" precast catch, 36" x 24" precast catch, 36" x 36" precast catch, 48” x 24" precast catch, San Francisco Horseshoe