National Conduit Supply Products

Connecting America

Our Core Products

Favorably priced    Always on-time    Delivered anywhere    Made in the USA

From large diameter HDPE conduit to micro duct, with related accessories, trust National Conduit Supply to get you what you need, where and when you need it. Whether that’s in all of the major cities across the country, or an off-the-map, rural backroad, rest assured we can and will get it there.

As the ONLY, truly national HDPE Supplier, we are your single solution if you manage your work at the national level.

All of our pipe is made in the USA, which provides you several obvious and not-so-obvious benefits:

  • Better product quality and consistency
  • Lower transit and shipping costs
  • Faster response time to project changes
  • Significantly lessened delivery lead time
  • Increased intellectual property security
  • Assurance that regulatory/compliance requirements are met
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HDPE Conduit

National Conduit Supply provides standard High Density Polyethylene (HDPE) conduits for standard underground installation. National Conduit Supply HDPE is durable and strong, yet flexible, providing ultimate protection against the elements. See our HDPE product specs sheet here.

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Cable in Conduit

In additional the standard HDPE conduit, National Conduit Supply also provides specialty conduit, including microduct, designed for special applications. Our specialty conduit is built to survive the elements and offers superior protection against heat and cold extremes.

Innerduct | Innerduct Supplier | National Innerduct Supplier


National Conduit Supply provides standard and custom sizes of innerduct, designed for use inside of existing larger conduit or as stand-alone, corrugated conduit for tight spaces, particularly useful in telecommunications and fiber optic applications.

Innerduct | Innerduct Supplier | National Innerduct Supplier


National Conduit Supply’s microduct line protects the vital connections moving our world’s toward more powerful data transferred through smaller spaces.

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PVC Pipe

National Conduit Supply provides durable PVC pipe and accessories with reliable, flexible delivery to any point in the nation. NOTE: Due to resin shortages, availability may fluctuate. Please contact us here to inquire!

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Rigid Steel Conduit

National Conduit Supply supplies galvanized, rigid steel conduit in a wide variety of sizes that can be custom cut to any length or quantity needed.

Ancillary Products & Accessories

National Conduit Supply is also proud to supply any and all of the accessories needed for installation and implementation. Below is a list of the most common accessories requested of us, but if you need something you don’t see— just ask us, we’ll get it to you!

  • Couplers
  • Sealants
  • Marking Products
  • Tracer Wire
  • Handholes
  • Pull Tape
  • Ground Rods
  • Industry Tools
  • Cutter/slitter
  • Connectors
  • & Thousands More— Ask us!

NCS goes above and beyond in their back-room handling of our HDPE conduit logistics. From order to delivery, they took care of every single facet, allowing us to be hands-off so that we could focus on our business. Top notch customer service!

— Jarret P.

Who We Serve

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Data Networking

National Conduit Supply is the ONLY conduit supplier that offers national, fully flexible delivery and logistics to provide the conduit that protects the vital connections of our modern world.


National Conduit Supply provides the protective telecommunications pathways for the high-tech fiber optic cabling that ensures we all remain connected. 


National Conduit Supply provides HDPE conduit for state Departments of Transportation and utilities, protecting vital connections involved with trenching, boring, and plowing.

CATV Conduit | Cable TV Conduit | National CATV Conduit Supplier

CATV (Cable TV)

National Conduit Supply is a national supplier of highly durable, flexible HDPE conduit, which meets the protective needs of running undergound Cable TV (CATV) coaxial cables.

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Electric & Power

National Conduit Supply provides HDPE conduit, corrugated innerduct, microduct, related accessories, and ancillary products to power suppliers and electric companies.

Questions & Quotes

If you're looking for a quote or want to learn more about National Conduit Supply, please contact us directly! We'll get back to you right away.
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