BMP Drain Guard “Witches Hat” 36″ x 48″ Skirt
BMP’s Drain Guard is installed underneath CB grate to filter sediment filled rainwater running from your job-site. The rainwater and sediment fall into the catch basin and filter through the Drain Guard.
- Material: Non-Woven, Polypropylene Geotextile
- Weight 8 oz
- Grab Tensile 205 lbs.
- Grab Elongation 50%
- Trapezoid Tear 85 lbs.
- CBR Puncture Resistance 535 lbs.
- Permittivity 1.35 sec
- Water Flow 90 gpm/ft2
- AOS 80/0.18
- UV Resistance 70/500