Detailed Product Description size: 1/2"×3/8", 3/4"×1/2", 1"×1/2", 1"×3/4", 1-1/4"×1/2", 1-1/4"×3/4"ITEM NO. RB1~RB6size: 1-1/4"×1", 1-1/2"×1/2", 1-1/2"×3/4", 1-1/2"×1", 1-1/2"×1-1/4", 2"×1/2"ITEM NO. RB7~RB12size: 2"×3/4", 2"×1", 2"×1-1/4", 2"×1-1/2"ITEM NO. RB13~RB16material: steelThis reducing bushing fits into any corresponding fitting to reduce the opening to another size. Reducing bushing is ...