Pipe Nipples Welded Round Nipple Close Nipple Carbon Steel Close Nipple Close Nipple / Steel Pipe Nipple Welded Nipple Sand Blasting Double Thread Nipple Black Double Thread Nipple Black Long & Short Thread Nipple Hex Pipe Nipple Black Single Nipple / Long Screw Single Nipple Hot Galvanized Barrel Nipple Black Barrel Nipple Reducing Nipple