4" diameter adjustable sleeve (nipple), without "o" ring, for Nordfab Quick-fit or compatible clamp-together dust collection ductwork. Also includes a 19-23" partial piece (one end cut to use with sleeve) of 4" diameter pipe. Length of partial piece is sellers choice.
Swage Nipple, 1 X 1/2, Threaded At Both Ends, Length 3 1/2 " , Material of Construction Seamless Steel. Standards MSS SP-95 Swage Nipples. Designed specifically for oil-field applications.
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