Replace Messy Hay Bales And Keep Sediment And Oil From Entering Drains And Inlets.
· Prevents silt, sediment and hydrocarbons from entering storm drains
· Provides visual indicators to storm drain locations
· Helps comply with NPDES, 40 CFR 122.26 (1999) when used as Best Management Practice in Storm Water Pollution Prevention Plans.
· Two standard sizes: Part # 9292 fits up to 24" x 24" grates. Part # 9293 fits up to 4' x 6' grates.