Cor-Line® ENT & Kwikon® Fittings

The Most Robust ENT System in the Industry

Noncorroding and nonconducting Cor-Line® Electrical Nonmetallic Tubing (ENT) and Kwikon® fittings, slab boxes and accessories are engineered for the rugged day-to-day challenges of the construction industry – whether encased in concrete, concealed in walls or ceilings, or in direct burial applications.

Available in 1⁄2″ – 2-1⁄2″, we have designed the toughest non-corroding, non-conducting ENT system on the market. The durability — even under tons of concrete — ensures years of reliable use for savings over the long run.

Saving contractors time, money and worry, this integrated ENT system makes sure the job gets done right.

Durable – reliable, noncorroding and nonconducting

Cost Effective – up to 50% in labour savings

Easy to Use – snap lock technology and lightweight design

The best part of working with [Cor-Line] ENT is its reliability. For the most part, we use all [Cor-Line] ENT products on our job sites. I like [Cor-Line] ENT because it’s light, flexible, and easy to nail down. It’s a high-quality product that we know we can trust.

Carlo Picone, Electrician Panson Electric
Cor-line & Kwikon installation against wall

Cor-Line® ENT

Lightweight and flexible, Cor-Line ENT is quick and easy to install reducing labour by up to 50% and is conveniently available in 10’ sticks, coils or long reels.

Typical Installations:

  • Walls: Cor-line’s flexibility and ease of handling in metal, wood or block walls
  • Floor / Ceiling Assemblies: Cor-Line’s light weight and versatility make it perfect for slab applications. Integrated with our slab boxes
  • Clean Connection: Kwikon ENT Stubbies provide a clean 1-1/2” stub of ENT to make your connection while protecting the ENT from the traditional breakage that can occur when the forms are removed
  • In slab Floors: With its concrete-tight design and easy-to install angled stubbies, Cor-Line and Kwikon offer the perfect ENT solution for in slab floors


  • CSA Standards C22.2
  • NEMA TC-13
  • FT-4 rated for use in non-combustible construction


Cor-line & Kwikon Installation to ENT Slab Box

Kwikon® Fittings

Noncorroding and nonconducting, Kwikon Fittings are engineered for the toughest challenges of the construction industry. Kwikon fittings can be encased in concrete, concealed in walls or ceilings, or in direct burial applications. Both Kwikon couplings and connectors, with their unique 360º locking tabs, provide for snap-on, lock-in installation that exceeds CSA and UL requirements for conduit pullout. Add our innovative form stubbys and Kwikon concrete-tight slab boxes, (available with or without integral 1⁄2″, 3⁄4″ or 1″ molded hub connectors) and you’ve got a total integrated system that saves you time and money on the job.


  • CSA C22.2 No.18
  • CSA C22.2 No.85
  • CSA C22.2 No.227.1
  • CSA C22.2 No.227.2
  • UL 514B
  • UL 514C, 1660
  • FT-4 rated for use in non-combustible construction


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