Welcome to Contractors Utility Supply!
Get set up with our new B2B Portal!
Shop by Brand
Duct Plugs
HDPE Conduit & Micro Duct Plugs
Protecting your underground infrastructure from water, gas, and debris is a critical final step in any conduit installation. Our heavy-duty selection of HDPE duct plugs and micro duct seals ensures a watertight and airtight environment, safeguarding your valuable fiber or power lines from the elements.
How to Choose the Right Duct Plug
Selecting the correct sealing method depends on whether your conduit is empty or actively housing cables. Understanding these distinctions will ensure long-term network integrity:
-
Blank Duct Plugs: Designed to tightly seal empty HDPE conduit, these expanding plugs prevent water, mud, and rodent intrusion while awaiting future construction phases. They are easy to install, lock securely in place, and remove quickly when it’s time to pull your cable.
-
Split & Simplex Plugs: If you have already pulled your line, split duct plugs are essential. Their specialized two-piece or hinged design allows them to wrap around existing cables without disconnecting the network, creating a secure, pressure-resistant seal around both the cable jacket and the inner duct wall.
-
Micro Duct Seals: For high-density fiber networks, precision micro duct plugs provide a highly reliable barrier against pressure loss and contamination in much smaller form factors.
Not sure how to match a split plug to your specific cable's Outer Diameter (OD) and duct's Inner Diameter (ID)? Contact our utility tool experts today for fast sizing assistance.