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The Southland 521-343HN is a malleable iron reducing pipe coupling with female iron pipe (FIP) threads sized 3/4 x 1/2 in. It joins pipes of different nominal diameters for transporting lubricant, oil, grease, liquefied petroleum gas, natural gases, steam and diesel and is not designed for potable water. The fitting is rated 300 psi, operates from -20 to 347 deg F, and is intended for use with steel pipe.
Malleable iron reducing coupling, 3/4 x 1/2 in FIP connections, 300 psi rating, for non-potable fluid and gas service
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