Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, Black Product Details Brand: Flex-Drain Material: Plastic Color: Black Product Dimensions: 96″L x 4″W Inside Diameter: 10.2 Centimeters Item Weight: 0.7 Pounds Maximum Pressure: 4 Bars Manufacturer: Cleveland Tubing, Inc. Advanced design for superior performance; solid pipe helps move water to a drain from your downspout diverter, rain gutter and more Exceeds the following ASTM standards, flex-drain outperforms the leading brand of corrugated pipe with brittleness, stiffness, and joint integrity Engineered to outperform, installs faster, requires 1/5th the storage and transport space, and perforated pipe has 14 percent better flow rate Outperforms in freeze and thaw conditions, also has 30-percent higher load-bearing rating from our patented peak and valley design Advanced design for superior performance; solid pipe helps move water to a drain from your downspout diverter, rain gutter and more Exceeds the following ASTM standards, flex-drain outperforms the leading brand of corrugated pipe with brittleness, stiffness, and joint integrity Engineered to outperform, installs faster, requires 1/5th the storage and transport space, and perforated pipe has 14 percent better flow rate Outperforms in freeze and thaw conditions, also has 30-percent higher load-bearing rating from our patented peak and valley design Solid drain-pipe expands in length from 2 to 8-feet – compatible with most traditional 3-inches and 4-inches corrugated pipe and 4-inches pvc Flex Drain 54021 4″ X 8′ Solid Flexible & Expandable Landscaping Drain Pipe