Corrugated Innerduct


Used for protecting and isolating cables, innerduct can help a system last longer and perform better. At Discount Low Voltage, we carry a big selection of corrugated innerduct and couplers with indoor, outdoor and plenum ratings. That means you can find the right product for your purposes.

Our indoor innerducts are made of PVC, providing durable and economical service. Made of HDPE, our outdoor innerduct is sturdy, durable and able to stand up to tough environments. For fire safety in installations in plenum spaces, we carry plenum-rated innerduct that is fire retardant and smoke resistant. All of these innerducts boast exceptional crack resistance and come with pull strings with high ratings. Their light weight and flexibility make them easy to work with. We also carry innerduct couplers to easily connect innerduct.


Our 1” innerducts are suitable for a wide range of environments. Choose from assorted lengths ranging from 50 feet to 350 feet. We also carry couplers in a variety of materials and configurations to easily connect innerduct. Our innerduct is great for:

Fiber optic cable

Cat 3, Cat 5e and Cat 6 cable
RG59 CCTV cable
CATV/Satellite RG6 coax

In-stock products ordered by 2 PM PT ship the same day.


Our innerduct and innerduct accessories are eligible for free shipping on qualifying orders. In addition, orders shipped outside California pay no sales tax. Add to the value by buying wire-fishing tools at discount prices. We carry a complete 
wire-fishing system from Magnepull as well as general supplies such as measuring tape and lubricants.


If you are interested in specific products, check out our short videos on the product pages to learn more. Full technical specifications are available on these pages as well. The Discount Low Voltage blog can help you out if you are unsure whether you need a PVC or plenum-rated innerduct.

If any questions remain, just call us toll-free or send us an email. We’ll help you find the product that’s right for your job.