Butt Weld Tail Piece Part Number: KUB-R Brand: Koncentrik® Unions Butt Weld Tail Piece Female Pipe Thread Tail Piece Part Number: KUT-R Brand: Koncentrik® Unions Female Pipe Thread Tail Piece Pipe Socket Tail Piece Part Number: KUS-R Brand: Koncentrik® Unions Pipe Socket Tail Piece Tube Socket Tail Piece Part Number: KSWU-R Brand: Koncentrik® Unions Tube Socket Tail Piece 1