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Pipe Fittings Direct. 3/4 inch mechant steel full coupling, Class 150, Internal Thread X Internal Thread
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Crouse-Hinds 191 3/4" Threaded 3pc Rigid/IMC Conduit Coupling, Concrete Tight, Malleable Iron | Cooper Electric
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BrassCraft 3/4-in x 3/4-in Threaded Female Adapter Coupling Fitting in the Brass Fittings department at Lowes.com
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Sigma ProConnex 3/4-in Zinc-plated Steel Threaded Coupling Conduit Fittings in the Conduit Fittings department at Lowes.com
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3/4 Inch FNPT PVC Pipe Coupling – 3/4 Female Pipe Fitting for Plumbing - 3/4 PVC Coupling Pipe Connectors – 3/4 Female Adapter PVC Pipe Fittings - Durable Sch 40 PVC Fittings - Amazon.com
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Smith Cooper 150# Black Malleable Iron 3/4 in. Banded Coupling Pipe Fittings - Threaded - John M. Ellsworth Co. Inc.
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