High Density Polyethylene (HDPE) pipe is a primary alternative to Polyvinyl Chloride (PVC) pipe for all piping applications and is rapidly gaining market share. Used since the 1950s, HDPE has demonstrated its effectiveness through its durability, leak-free performance, corrosion resistance, and ductility. Its greater resilience and flexibility make it less susceptible than PVC to surges, damage from digging, and shifting soils during earthquakes.