High Density Polyethylene or HDPE Pipe is available in either single or double wall.  Both have an estimated 100 year service life

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Single Wall Rolls: Flexible piping available in 4", 6", & 8" solid or perforated.

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Double Wall: Dual wall with a smooth interior available in sizes ranging from 4" - 60".

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Single Wall 20': Available in 12", 15", 18", 24".