Mutual 14925 Silt Sack, Non Woven Geotextile Disposal Sediment Filter Wetland Bag, 4' Length x 3' Width x 2' HeightMutual silt sack used for reducing the amount of silt and debris that may enter a storm water inlet during construction, These sacks are placed inside the storm drain to collect debris as it enters the opening. Measures 4 feet length by 3 feet width by 2 feet height. Specifications Part Number: 14925 432 Number of Items: 1 Brand Name: Mutual Industries EAN: 0764083492519 Height: 2 feet Length: 4 feet Model Number: 14925 432 UNSPSC Code: 55121700 UPC: