Sizes Series 4100
4104 Tridicator reduction nipple R 1/2 A

sizes in inch.   go to sizes in mm.
Size A B C D F G H L1
2½ 2.64 1.02 2.50 1.10 0.35 0.43 0.55 0.67
3¼ 3.31 1.06 3.15 1.10 0.35 0.43 0.55 0.67