Description The OPW C30A-500 Flexworks Double Wall Primary Pipe 3IN 500FT is more flexible, lighter and has reduced memory. Pipe can also be replaced without breaking concrete. Key Features Eliminates the hassles – installation time and potential leak points of rigid pipe installations Fast and easy installation – results in less installation labor, time and cost. Eliminates burdensome cutting, fitting, and cleaning No adhesives – heat assists, curing problems or electrofusion welding of joints Easy to bend – no special fittings to install in order to make bends