Our tallest SpillBlocker dikes are designed to handle high-volume spills and pooling liquids. The 4"W x 5'L x 4.5"H size provides fast protection for when a large spill is headed for your drain. Confines and diverts fluids like water, oils, and many chemicals without absorbing them. This containment berm works in temperatures from 0°F to 160°F. Built-in dovetail connectors create a liquid-proof seal and allow you to join as many sections as you need without extra parts.