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Aluminum Threaded

Tapered threads accommodate a wide range of conduit ODs within a given conduit size. Also available in a Riser/Plenum rated version and a Corrugated/Universal version.
Tapered threads accommodate a wide range of conduit ODs within a given conduit size. Also available in a Riser/Plenum rated version and a Corrugated/Universal version.

Features

  • Self-threading, which draws each end of the conduit into the center of the coupler
  • Not air-tight or water-tight
  • Threads may reduce conduit ID
  • Wide tolerance 'universal' versions available for many corrugated duct sizes
  • The Riser/Plenum versions are approved for use in both Riser and Plenum applications – Riser UL 1666 & Plenum UL 2024
Aluminum Threaded

Technical Specifications

Select Coupler Type

Corrugated
Corrugated
Riser-Plenum
Straight
Part # Description OD Working Range (in) Packaging
20003141 1" Aluminum Coupler - Universal 1.160 - 1.410 Each
20001853 1 1/4" Aluminum Coupler - Universal 1.495 - 1.700 Each
20003897 1 1/2" Aluminum Coupler - Universal 1.800 - 1.960 Each
20002865 2" Aluminum Coupler - Universal 2.310 - 2.450 Each
20004535 3/4" Riser/Plenum Aluminum Coupler 0.996 - 1.026 Each
20004539 1" Riser/Plenum Aluminum Coupler 1.410 - 1.440 Each
20005397 1 1/4" Riser/Plenum Aluminum Coupler 1.620 - 1.650 Each
20005398 1 1/2" Riser/Plenum Aluminum Coupler 1.860 - 1.890 Each
20005399 2" Riser/Plenum Aluminum Coupler 2.465 - 2.495 Each
20005827 1" Aluminum Coupler 1.295 - 1.335 Each
20005828 1 1/4" Aluminum Coupler 1.640 - 1.680 Each
20005829 1 1/2" Aluminum Coupler 1.880 - 1.920 Each
20005830 2" Aluminum Coupler 2.355 - 2.395 Each
20001538 2 1/2" Aluminum Coupler 2.835 - 2.900 Each

Downloads

Other couplers

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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.

Contact us