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The Topaz 391S is an EMT to rigid set screw coupling designed to maintain a fixed position between EMT and rigid conduits. Its set screw to clamp type design ensures a secure connection. Constructed from strong and resilient steel with a zinc-plated finish, it optimizes performance and longevity.
Combination couplings maintain fixed position for EMT to Rigid. UL listed and confidently backed by the Topaz lifetime guarantee.
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