MicroTechnology

MicroTechnology

MicroTechnology is a term given to smaller conduits and fiber used in Inside and Outside Plant Construction (ISP and OSP). MicroDucts were developed as a solution to house fiber cables that were smaller in size, but still carried significant capacity. Today, MicroCables range from 6 to 432-fiber counts. The glass fibers are the same type as those used in traditional fiber cables, only the cable design has been altered to reduce the diameter of the cable sheath and support system. MicroDucts bundled under one sheath are called FuturePath and provide multiple ducts in one structure for future expansion of networks.

MicroDucts HDPE

MicroDucts Locatable

MicroDucts Figure-8

MicroDucts PiggyBack

MicroDucts Riser

MicroDucts Plenum

MicroDucts Armored

FuturePath Flex

FuturePath Hybrid

FuturePath Jumbo

FuturePath Figure-8

FuturePath Armored

FuturePath Aerial

FuturePath Riser

FuturePath Plenum

Fill Ratio & Product Selection Tools NEC Fill Ratio

Dura-Line manufactures standard High Density Polyethylene (HDPE) conduits for standard installation applications such as standard underground, as innerducts in existing conduits, or corrugated products to use in congested areas. HDPE is a flexible and resilient material. It provides superior resistance to natural or mechanical damage, and has excellent low temperature properties to handle cold weather.

Smooth Out / Ribbed In

Ribbed In / Out

HDPE Conduit - Smooth out Ribbed In

Smooth Out / Ribbed In

Our popular HDPE duct with a smooth outer wall and internal longitudinal ribs for a reduced coefficient of friction.

Fill Ratio & Product Selection Tools NEC Fill Ratio

Dura-Line's Speciality Conduits are designed and manufactured to perform to meet application-specfic requirements such as aerial, locatable, providing superior mechanical protection, and fire resistant spaces. Customers using Specialty products leverage the unique characteristics for particular projects.

Split Corrugated

Corrugated Riser

Corrugated Plenum

Smooth-Cor Flex

Utility Grade Flex Duct

Cable-In-Conduit (CIC)

Cable-In-Conduit Communication

Cable-In-Conduit Irrigation

Cable-In-Conduit NEMA TC7

Cable-In-Conduit UL1990

Cable-In-Conduit Electric

Fill Ratio & Product Selection Tools NEC Fill Ratio

To complete your installation, Dura-Line offers a complete line of Accessories and additional tools to make installations easier. Couplers, with properties designed for air-jetting, plow chutes, and other installations, easily join lengths of Conduits and MicroDucts. Lubricants in a variety of formulations, including high performance in cold weather, aid in cable placement. MicroAccessories include couplers, end caps, and speciality items designed to perform with MicroDucts and FuturePath. Bull-Line Pull Tape can help install both conduit and cables inside conduit.

MicroAccessories

Bull-Line Pull Tape

Search by Part Number or Item Name

Fill Ratio & Product Selection Tools NEC Fill Ratio

These Applications demonstrate how conduit is used in everyday life throughout our modern world. Considered an integral part of the construction phase, the long-term return on investment on installing a flexible, easily scalable conduit network system is priceless. Multiple industries rely on clear, consistent, reliable communication technology. Learn more about how Dura-Line products are integral in providing connection.

Power & Utilities

Fiber Optic Sensing

Fiber To The Home

Multiple Dwelling Units

Rails / Tunnels

Renewable Energy

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Fill Ratio & Product Selection Tools NEC Fill Ratiol

Dura-Line prides itself on creating cutting edge technology that solves unique customer installation scenarios. For nearly half a century, our team of experts has been hands-on involved in product research and installation training. In the Tech Center section, we share tips and techniques intended to help and engage engineers, installation crews, and end-users.

BABA Compliance

Dura-Line Academy

Conduit Minute Blog

2025 Events Listing

Safety Data Sheets

Technology Summit

Training - MDU's

Industry Vocabulary

In search of industry specific training?

The Dura-Line Academy provides industry-leading training to design, deploy, and maintain networks flawlessly around the world.

Fill Ratio & Product Selection Tools NEC Fill Ratio

What are you looking for?

Ribbed In/Out

HDPE duct with inner and outer ribs. The internal longitudinal ribs for a reduced coefficient of friction, while the external ribs help prevent spiraling and reduce friction when pulling innerduct into larger conduits. Available with optional Silicore ULF permanently lubricated lining.

HDPE duct with inner and outer ribs. The internal longitudinal ribs for a reduced coefficient of friction, while the external ribs help prevent spiraling and reduce friction when pulling innerduct into larger conduits. Available with optional Silicore ULF permanently lubricated lining.

We offer an extensive portfolio of US-made conduit products and accessories that conform with several domestic preference standards, including Buy America (BAA), Build America, Buy America (BABA), and DOT Buy American requirements. Any products including a locate wire or preinstalled cables, will need to be specifically evaluated. Fire Retardant Resins may also require additional evaluation to meet program guidelines. Please contact your Dura-Line representative for more information.

Features

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 as Parallel or Divided Reels -up to 3 conduits

Details

Footage/Meter Markings
Internal Ribs

HDPE duct with inner and outer ribs. The internal longitudinal ribs for a reduced coefficient of friction, while the external ribs help prevent spiraling and reduce friction when pulling innerduct into larger conduits. Available with optional Silicore ULF permanently lubricated lining.

Quick Links

Dura-Line Academy

Specifications and Shipping Info

Choose Conduit Size, Wall Type, and Wall Ratio

Nominal Size

Wall Type

Wall Ratio

Select Size and Wall Dimensions above

Downloads

Product Family Technical Data Sheet

DL_Rib InOut_12.24

Colors

Blue

Blue

Orange

Orange

Green

Green

Brown

Brown

Gray

Gray

White

White

Red

Red

Black

Black

Terra Cotta

Terra Cotta

or custom

Options

Pre-Installed Tape

Pre-Installed Cable

Color Stripes

Extra UV Protection

Parallel or Divided Reels

Installations

Applications

Tech Center

Use these digital tools to calculate Fill Ratio for MicroDucts and MicroCables, Fill Ratio for Multiple Items (OverRides), allowable Fill Ratio in accordance with NEC, choosing a MicroDuct and MicroCable, and Selecting the correct MicroDuct for your project.

Fill Ratio & Product Selection Tools

Use these digital tools to calculate Fill Ratio for MicroDucts and MicroCables, Fill Ratio for Multiple Items (OverRides), allowable Fill Ratio in accordance with NEC, choosing a MicroDuct and MicroCable, and Selecting the correct MicroDuct for your project.

The Academy provides industry-leading training to design, deploy, and maintain networks flawlessly around the world. Our training is geared towards a wide range of users from network owners, to designers, engineers, and installers.

Dura-Line Academy

The Academy provides industry-leading training to design, deploy, and maintain networks flawlessly around the world. Our training is geared towards a wide range of users from network owners, to designers, engineers, and installers.

Sometimes the best way to learn is from someone who is hands-on! Our staff of highly trained and specialized engineers and sales team have been hands-on problem-solving in every installation scenario.

Videos

Sometimes the best way to learn is from someone who is hands-on! Our staff of highly trained and specialized engineers and sales team have been hands-on problem-solving in every installation scenario.

Want a better connection with Dura-Line?

Ask a question or email us a comment! We're happy to supply additional information and would love to explore how we can be of service to you.

Want a better connection with Dura-Line?

Ask a question or email us a comment! We're happy to supply additional information and would love to explore how we can be of service to you.