Comparison : Item # 9862-8, 1/2 Inch Copper Tube Size (CTS) Twist-To-Lock Straight Union
Item # 9862-12, 3/4 Inch Copper Tube Size (CTS) Twist-To-Lock Straight Union
Item # 9862-16, 1 Inch Copper Tube Size (CTS) Twist-To-Lock Straight Union