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#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Standard HDPE Conduit: Ribbed Interior/Exterior, Sizes Ranging from 1" to 1 ½"

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SKU: DL-RibInOut
Various lead times may apply to this product. Please contact us for more details.

(We do not offer credits or returns for this item.)

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Ribbed In/Out Standard HDPE Conduit, from 1 to 1 ½ inches

HDPE duct featuring inner and outer ribs. The internal ribs minimize friction, while external ones deter spiraling and ease innerduct pulling into larger conduits. Optional Silicore ULF lining offers permanent lubrication.

For more information on the different types of Dura-Line products we carry, view our Dura-Line page here.





  • Manufactured from flexible HDPE, makes gradual bends without special equipment
  • External ribs help reduce spiraling during duct installation and reduces installation forces when installed into conduit
  • Internal ribs reduce the the coefficient of friction during cable placement
  • Continuous lengths reduce joining costs
  • Excellent low-temperature properties, allows installation in cold climates
  • Outstanding long-term cable protection from shifting ground, rock, and root impingement
  • Provides a permanent pathway, simplifies future cable repairs or replacement
  • Available with multiple ducts per reel
  • Footage/Meter Markings
  • Internal Ribs



Available Sizes

Size Range Available

  • 1"
  • 1 ¼"
  • 1 ½"

Wall Types

  • True SIDR 9

Standard Colors

  • Blue
  • Orange
  • Green
  • Brown
  • Gray
  • White
  • Red
  • Black
  • Terra Cotta


  • Pre-Installed Tape
  • Pre-Installed Cable
  • Color Stripes
  • Extra UV Protection