Manufacturer: SpillTech, Manufacturer Part Number : FSS-SOM-55Remove metals, oils, and large amounts of sediment along the stormwater runoff path, even on uneven, rough or exposed-soil surfaces. -Protect your stormwater drainage system with socks that filter considerable sediment from stormwater; can also catch metals and oils -Put it to work anywhere stormwater flows; ideal for use at the stormwater source, at the drain and anywhere in between -Captures copper, lead, cadmium, zinc, chromium and more -Tough outer skin works near light construction, salvage yards and other locations -Filter sock’s own weight can keep it firmly in place, even on dirt or broken asphalt; can be staked on slopes -Bends effortlessly around drains and is easy to move when needed -Parboiled, oven-dried rice hull inner material will not grow mold; won’t release harmful compounds like rubber alternatives -Count on the 4.2 GPM/Linear Foot constant-flow filtration to resist water backup