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Test Slugs
Aluminum Test Slugs & Mandrels
Before running expensive fiber optic cable or pulling tape through underground conduit, verifying the pathway is clear of obstructions and deformations is a critical step. At Contractors Utility Supply, we offer a high-quality selection of test slugs and mandrel assemblies designed to prove your ducts are perfectly round and ready for line blowing operations. Running a test slug through your system helps identify blockages early, preventing costly cable damage and unexpected project delays.
We proudly stock industry-leading conduit proving equipment from trusted utility brands like DCD and GMP. Our inventory features durable DCD aluminum test slugs specifically engineered for Schedule 40 ducts, with sizes ranging from 1-1/2 inch up to 6 inches in diameter. These solid aluminum slugs are built to withstand rigorous field use while smoothly navigating your conduit runs.
In addition to individual slugs, we carry comprehensive GMP Test Mandrel Assemblies in popular utility sizes, including 2.5", 3", 3.5", and 4". Equipped with secure wire rope pulling eyes, these proving tools can be easily pulled in either direction for maximum job site efficiency. Browse our full collection of test slugs below to equip your crew with the reliable tools needed for a flawless installation.