Mirafi FW403 Geotextile Fabric - 12.5' x 300' Roll - Solmax
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The Mirafi FW-series is a woven monofilament geotextile designed for high-flow filtration and drainage.
Woven from monofilament yarns, these fabrics keep large open pathways for water while filtering soil, giving them excellent flow and clog resistance in wet, fine-grained conditions. They are specified for subsurface drainage, riprap bedding, and permanent erosion control.
Where standard wovens would blind or clog, the FW-series maintains permeability over the long term, making it the choice for drainage-critical and high-sediment environments.
Square Feet / Roll: 3,750
Weight: 245 lbs
Fabric Specifications: Download FW403 Specification Sheet
Why Choose Mirafi FW403?
5 reasons engineers specify Mirafi monofilament woven fabric over generic drainage alternatives
Precise AOS for Reliable Filtration
Engineered Apparent Opening Size balances soil retention and hydraulic conductivity for subsurface drainage and pipe wrap applications.
Intermediate Strength Between FW402 and FW404
Provides the right grab tensile for applications requiring more survivability than FW402 without the weight and cost of FW404.
DOT Pre-Approved for Drainage Applications
Mirafi FW403 is specified on DOT drainage fabric applications — providing straightforward project acceptance on public infrastructure.
USA-Made, BABA Eligible
Manufactured in Georgia — qualifies for Build America / Buy America requirements on federally funded projects.
Published ASTM Test Data
Complete AOS, permittivity, and tensile data are published per ASTM standards for engineering submittals and inspection documentation.
