Containment Berm, Rapid Rise, 12 X 40 , 22 Oz PVC, Part # 8657

Sidewalls stay lowered and out of the way until they are needed. Foam in the top, outer perimeter of this containment berm's sidewalls raise the walls with the level of the liquid should there be a spill. But the walls stay down and flat during normal, day-to-day, operations. Helps comply with SPCC and EPA spill containment regulations.