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Pipe Fittings Direct. 6 inch NPT mechant steel full coupling, Class 150, Internal Thread X Internal Thread
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Pipe Fittings Direct. 6 inch NPT weld on mechant steel half coupling, Class 150, Internal Thread X Butt Weld
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ADS 6-in x 6-in Corrugated Snap Coupler Fittings in the Corrugated Drainage Pipe Fittings department at Lowes.com
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