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The B&K 521-310 is a reducing pipe coupling designed for various plumbing applications. With a nominal size of one quarter inch by one eighth inch and a national pipe thread (NPT) end style, this coupling meets the needs of oil and gas fluid systems. It is made from malleable iron with a black oxide finish, suitable for servicing pressures up to three hundred psi and rated for one hundred fifty lb pressure class.
This coupling allows for secure connections and effective flow management in plumbing systems.
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