Nipples
Browse straight and reducing pipe nipples; compare the hex body and both connection sizes for each series.

NPT Equal Hex Nipple — Class 150, 316 Stainless Steel
Double-ended male NPT hexagon pipe nipple with integral center wrench flats for joining two equal female-threaded NPT ports. Supplied in Class 150 316 stainless steel across nominal sizes from 1/4" to 3".

NPT Reducing Hex Nipple (Male × Male) — Class 150, 316 Stainless Steel
Stepped male-to-male NPT reducing hex nipple with center wrench flats for connecting two unequal female NPT ports. Supplied in Class 150 316 stainless steel across reducing sizes from 1/4" × 1/8" to 1" × 3/4".
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